Home / 90,403,403.40-135,605,105.10-59,792,401.80

Finding the Fourth Proportional to 90,403,403.40, 135,605,105.10 and 59,792,401.80

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Solution

The fourth proportional to 90,403,403.40, 135,605,105.10 and 59,792,401.80 is: 89,688,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,403,403.40 : 135,605,105.10 = 59,792,401.80 : x
  2. Step 2: Convert to fraction form
    90,403,403.40/135,605,105.10 = 59,792,401.80/x
  3. Step 3: Cross multiply
    90,403,403.40x = 135,605,105.10 × 59,792,401.80
  4. Step 4: Simplify right side
    90,403,403.40x = 8,108,154,930,270,428
  5. Step 5: Solve for x
    x = 8,108,154,930,270,428/90,403,403.40
  6. Step 6: Final answer
    x = 89,688,602.70

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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.