Home / 103,615,999.40-155,423,999.10-31,803,084.20

Finding the Fourth Proportional to 103,615,999.40, 155,423,999.10 and 31,803,084.20

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Solution

The fourth proportional to 103,615,999.40, 155,423,999.10 and 31,803,084.20 is: 47,704,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615,999.40 : 155,423,999.10 = 31,803,084.20 : x
  2. Step 2: Convert to fraction form
    103,615,999.40/155,423,999.10 = 31,803,084.20/x
  3. Step 3: Cross multiply
    103,615,999.40x = 155,423,999.10 × 31,803,084.20
  4. Step 4: Simplify right side
    103,615,999.40x = 4,942,962,530,078,024
  5. Step 5: Solve for x
    x = 4,942,962,530,078,024/103,615,999.40
  6. Step 6: Final answer
    x = 47,704,626.30

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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.