Home / 145,547,123.64-200,849,756.82-79,466,404.68

Finding the Fourth Proportional to 145,547,123.64, 200,849,756.82 and 79,466,404.68

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Solution

The fourth proportional to 145,547,123.64, 200,849,756.82 and 79,466,404.68 is: 109,660,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,547,123.64 : 200,849,756.82 = 79,466,404.68 : x
  2. Step 2: Convert to fraction form
    145,547,123.64/200,849,756.82 = 79,466,404.68/x
  3. Step 3: Cross multiply
    145,547,123.64x = 200,849,756.82 × 79,466,404.68
  4. Step 4: Simplify right side
    145,547,123.64x = 15,960,808,055,337,710
  5. Step 5: Solve for x
    x = 15,960,808,055,337,710/145,547,123.64
  6. Step 6: Final answer
    x = 109,660,759.05

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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.