Home / 131,931,907.38-182,068,439.40-72,396,274.86

Finding the Fourth Proportional to 131,931,907.38, 182,068,439.40 and 72,396,274.86

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Solution

The fourth proportional to 131,931,907.38, 182,068,439.40 and 72,396,274.86 is: 99,908,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,931,907.38 : 182,068,439.40 = 72,396,274.86 : x
  2. Step 2: Convert to fraction form
    131,931,907.38/182,068,439.40 = 72,396,274.86/x
  3. Step 3: Cross multiply
    131,931,907.38x = 182,068,439.40 × 72,396,274.86
  4. Step 4: Simplify right side
    131,931,907.38x = 13,181,076,782,133,654
  5. Step 5: Solve for x
    x = 13,181,076,782,133,654/131,931,907.38
  6. Step 6: Final answer
    x = 99,908,180.24

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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.