Home / 101,280,041.28-139,767,127.98-54,870,295.20

Finding the Fourth Proportional to 101,280,041.28, 139,767,127.98 and 54,870,295.20

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Solution

The fourth proportional to 101,280,041.28, 139,767,127.98 and 54,870,295.20 is: 75,721,370.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280,041.28 : 139,767,127.98 = 54,870,295.20 : x
  2. Step 2: Convert to fraction form
    101,280,041.28/139,767,127.98 = 54,870,295.20/x
  3. Step 3: Cross multiply
    101,280,041.28x = 139,767,127.98 × 54,870,295.20
  4. Step 4: Simplify right side
    101,280,041.28x = 7,669,063,571,518,780
  5. Step 5: Solve for x
    x = 7,669,063,571,518,780/101,280,041.28
  6. Step 6: Final answer
    x = 75,721,370.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.