Home / 99,291,937.20-148,937,905.80-31,125,771.60

Finding the Fourth Proportional to 99,291,937.20, 148,937,905.80 and 31,125,771.60

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Solution

The fourth proportional to 99,291,937.20, 148,937,905.80 and 31,125,771.60 is: 46,688,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291,937.20 : 148,937,905.80 = 31,125,771.60 : x
  2. Step 2: Convert to fraction form
    99,291,937.20/148,937,905.80 = 31,125,771.60/x
  3. Step 3: Cross multiply
    99,291,937.20x = 148,937,905.80 × 31,125,771.60
  4. Step 4: Simplify right side
    99,291,937.20x = 4,635,807,238,513,116
  5. Step 5: Solve for x
    x = 4,635,807,238,513,116/99,291,937.20
  6. Step 6: Final answer
    x = 46,688,657.40

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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.