Home / 90,438,595.20-135,657,892.80-56,001,218.40

Finding the Fourth Proportional to 90,438,595.20, 135,657,892.80 and 56,001,218.40

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Solution

The fourth proportional to 90,438,595.20, 135,657,892.80 and 56,001,218.40 is: 84,001,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438,595.20 : 135,657,892.80 = 56,001,218.40 : x
  2. Step 2: Convert to fraction form
    90,438,595.20/135,657,892.80 = 56,001,218.40/x
  3. Step 3: Cross multiply
    90,438,595.20x = 135,657,892.80 × 56,001,218.40
  4. Step 4: Simplify right side
    90,438,595.20x = 7,597,007,282,376,588
  5. Step 5: Solve for x
    x = 7,597,007,282,376,588/90,438,595.20
  6. Step 6: Final answer
    x = 84,001,827.60

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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.