Home / 103,039,508.80-154,559,263.20-72,806,420.80

Finding the Fourth Proportional to 103,039,508.80, 154,559,263.20 and 72,806,420.80

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Solution

The fourth proportional to 103,039,508.80, 154,559,263.20 and 72,806,420.80 is: 109,209,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,039,508.80 : 154,559,263.20 = 72,806,420.80 : x
  2. Step 2: Convert to fraction form
    103,039,508.80/154,559,263.20 = 72,806,420.80/x
  3. Step 3: Cross multiply
    103,039,508.80x = 154,559,263.20 × 72,806,420.80
  4. Step 4: Simplify right side
    103,039,508.80x = 11,252,906,755,077,154
  5. Step 5: Solve for x
    x = 11,252,906,755,077,154/103,039,508.80
  6. Step 6: Final answer
    x = 109,209,631.20

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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.