Home / 287,357,117.40-431,098,661.70-93,235,498.20

Finding the Fourth Proportional to 287,357,117.40, 431,098,661.70 and 93,235,498.20

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Solution

The fourth proportional to 287,357,117.40, 431,098,661.70 and 93,235,498.20 is: 139,873,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,357,117.40 : 431,098,661.70 = 93,235,498.20 : x
  2. Step 2: Convert to fraction form
    287,357,117.40/431,098,661.70 = 93,235,498.20/x
  3. Step 3: Cross multiply
    287,357,117.40x = 431,098,661.70 × 93,235,498.20
  4. Step 4: Simplify right side
    287,357,117.40x = 40,193,698,496,952,760
  5. Step 5: Solve for x
    x = 40,193,698,496,952,760/287,357,117.40
  6. Step 6: Final answer
    x = 139,873,683.52

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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.