Home / 90,339,412.86-135,432,943.65-39,182,903.82

Finding the Fourth Proportional to 90,339,412.86, 135,432,943.65 and 39,182,903.82

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Solution

The fourth proportional to 90,339,412.86, 135,432,943.65 and 39,182,903.82 is: 58,741,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339,412.86 : 135,432,943.65 = 39,182,903.82 : x
  2. Step 2: Convert to fraction form
    90,339,412.86/135,432,943.65 = 39,182,903.82/x
  3. Step 3: Cross multiply
    90,339,412.86x = 135,432,943.65 × 39,182,903.82
  4. Step 4: Simplify right side
    90,339,412.86x = 5,306,656,005,097,430
  5. Step 5: Solve for x
    x = 5,306,656,005,097,430/90,339,412.86
  6. Step 6: Final answer
    x = 58,741,316.08

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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.