Home / 98,128,143,200.80-147,192,214,801.20-31,885,935,738.40

Finding the Fourth Proportional to 98,128,143,200.80, 147,192,214,801.20 and 31,885,935,738.40

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Solution

The fourth proportional to 98,128,143,200.80, 147,192,214,801.20 and 31,885,935,738.40 is: 47,828,903,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,128,143,200.80 : 147,192,214,801.20 = 31,885,935,738.40 : x
  2. Step 2: Convert to fraction form
    98,128,143,200.80/147,192,214,801.20 = 31,885,935,738.40/x
  3. Step 3: Cross multiply
    98,128,143,200.80x = 147,192,214,801.20 × 31,885,935,738.40
  4. Step 4: Simplify right side
    98,128,143,200.80x = 4,693,361,502,343,833,059,328
  5. Step 5: Solve for x
    x = 4,693,361,502,343,833,059,328/98,128,143,200.80
  6. Step 6: Final answer
    x = 47,828,903,607.60

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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.