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Finding the Fourth Proportional to 19,315,968,000.90, 28,973,952,001.35 and 19,315,968,000.90

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Solution

The fourth proportional to 19,315,968,000.90, 28,973,952,001.35 and 19,315,968,000.90 is: 28,973,952,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,968,000.90 : 28,973,952,001.35 = 19,315,968,000.90 : x
  2. Step 2: Convert to fraction form
    19,315,968,000.90/28,973,952,001.35 = 19,315,968,000.90/x
  3. Step 3: Cross multiply
    19,315,968,000.90x = 28,973,952,001.35 × 19,315,968,000.90
  4. Step 4: Simplify right side
    19,315,968,000.90x = 559,659,929,717,689,155,584
  5. Step 5: Solve for x
    x = 559,659,929,717,689,155,584/19,315,968,000.90
  6. Step 6: Final answer
    x = 28,973,952,001.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.