Home / 145,547,135.64-200,849,773.38-79,466,416.68

Finding the Fourth Proportional to 145,547,135.64, 200,849,773.38 and 79,466,416.68

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Solution

The fourth proportional to 145,547,135.64, 200,849,773.38 and 79,466,416.68 is: 109,660,775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,547,135.64 : 200,849,773.38 = 79,466,416.68 : x
  2. Step 2: Convert to fraction form
    145,547,135.64/200,849,773.38 = 79,466,416.68/x
  3. Step 3: Cross multiply
    145,547,135.64x = 200,849,773.38 × 79,466,416.68
  4. Step 4: Simplify right side
    145,547,135.64x = 15,960,811,781,498,654
  5. Step 5: Solve for x
    x = 15,960,811,781,498,654/145,547,135.64
  6. Step 6: Final answer
    x = 109,660,775.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.