Home / 159,710,505.90-220,401,162.30-86,371,647.90

Finding the Fourth Proportional to 159,710,505.90, 220,401,162.30 and 86,371,647.90

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Solution

The fourth proportional to 159,710,505.90, 220,401,162.30 and 86,371,647.90 is: 119,193,233.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,710,505.90 : 220,401,162.30 = 86,371,647.90 : x
  2. Step 2: Convert to fraction form
    159,710,505.90/220,401,162.30 = 86,371,647.90/x
  3. Step 3: Cross multiply
    159,710,505.90x = 220,401,162.30 × 86,371,647.90
  4. Step 4: Simplify right side
    159,710,505.90x = 19,036,411,586,926,356
  5. Step 5: Solve for x
    x = 19,036,411,586,926,356/159,710,505.90
  6. Step 6: Final answer
    x = 119,193,233.28

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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.