Home / 722,636,903.87-997,238,925.86-409,371,117.42

Finding the Fourth Proportional to 722,636,903.87, 997,238,925.86 and 409,371,117.42

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Solution

The fourth proportional to 722,636,903.87, 997,238,925.86 and 409,371,117.42 is: 564,932,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,636,903.87 : 997,238,925.86 = 409,371,117.42 : x
  2. Step 2: Convert to fraction form
    722,636,903.87/997,238,925.86 = 409,371,117.42/x
  3. Step 3: Cross multiply
    722,636,903.87x = 997,238,925.86 × 409,371,117.42
  4. Step 4: Simplify right side
    722,636,903.87x = 408,240,813,411,981,888
  5. Step 5: Solve for x
    x = 408,240,813,411,981,888/722,636,903.87
  6. Step 6: Final answer
    x = 564,932,141.20

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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.