Home / 12,868,166,901.60-19,302,250,352.40-7,970,406,645.60

Finding the Fourth Proportional to 12,868,166,901.60, 19,302,250,352.40 and 7,970,406,645.60

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Solution

The fourth proportional to 12,868,166,901.60, 19,302,250,352.40 and 7,970,406,645.60 is: 11,955,609,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868,166,901.60 : 19,302,250,352.40 = 7,970,406,645.60 : x
  2. Step 2: Convert to fraction form
    12,868,166,901.60/19,302,250,352.40 = 7,970,406,645.60/x
  3. Step 3: Cross multiply
    12,868,166,901.60x = 19,302,250,352.40 × 7,970,406,645.60
  4. Step 4: Simplify right side
    12,868,166,901.60x = 153,846,784,483,803,922,432
  5. Step 5: Solve for x
    x = 153,846,784,483,803,922,432/12,868,166,901.60
  6. Step 6: Final answer
    x = 11,955,609,968.40

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Double scale
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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.