Home / 99,852,917.60-149,779,376.40-42,335,400.80

Finding the Fourth Proportional to 99,852,917.60, 149,779,376.40 and 42,335,400.80

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Solution

The fourth proportional to 99,852,917.60, 149,779,376.40 and 42,335,400.80 is: 63,503,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,852,917.60 : 149,779,376.40 = 42,335,400.80 : x
  2. Step 2: Convert to fraction form
    99,852,917.60/149,779,376.40 = 42,335,400.80/x
  3. Step 3: Cross multiply
    99,852,917.60x = 149,779,376.40 × 42,335,400.80
  4. Step 4: Simplify right side
    99,852,917.60x = 6,340,969,931,468,061
  5. Step 5: Solve for x
    x = 6,340,969,931,468,061/99,852,917.60
  6. Step 6: Final answer
    x = 63,503,101.20

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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.