Home / 100,927,142.79-139,279,518.07-54,517,417.22

Finding the Fourth Proportional to 100,927,142.79, 139,279,518.07 and 54,517,417.22

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Solution

The fourth proportional to 100,927,142.79, 139,279,518.07 and 54,517,417.22 is: 75,234,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,927,142.79 : 139,279,518.07 = 54,517,417.22 : x
  2. Step 2: Convert to fraction form
    100,927,142.79/139,279,518.07 = 54,517,417.22/x
  3. Step 3: Cross multiply
    100,927,142.79x = 139,279,518.07 × 54,517,417.22
  4. Step 4: Simplify right side
    100,927,142.79x = 7,593,159,596,822,719
  5. Step 5: Solve for x
    x = 7,593,159,596,822,719/100,927,142.79
  6. Step 6: Final answer
    x = 75,234,068.72

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1.5x scale

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.