Home / 159,710,545.12-220,401,216.40-86,371,687.20

Finding the Fourth Proportional to 159,710,545.12, 220,401,216.40 and 86,371,687.20

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Solution

The fourth proportional to 159,710,545.12, 220,401,216.40 and 86,371,687.20 is: 119,193,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,710,545.12 : 220,401,216.40 = 86,371,687.20 : x
  2. Step 2: Convert to fraction form
    159,710,545.12/220,401,216.40 = 86,371,687.20/x
  3. Step 3: Cross multiply
    159,710,545.12x = 220,401,216.40 × 86,371,687.20
  4. Step 4: Simplify right side
    159,710,545.12x = 19,036,424,921,400,312
  5. Step 5: Solve for x
    x = 19,036,424,921,400,312/159,710,545.12
  6. Step 6: Final answer
    x = 119,193,287.50

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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.