Home / 147,965,389.70-221,948,084.55-79,940,941.70

Finding the Fourth Proportional to 147,965,389.70, 221,948,084.55 and 79,940,941.70

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Solution

The fourth proportional to 147,965,389.70, 221,948,084.55 and 79,940,941.70 is: 119,911,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,965,389.70 : 221,948,084.55 = 79,940,941.70 : x
  2. Step 2: Convert to fraction form
    147,965,389.70/221,948,084.55 = 79,940,941.70/x
  3. Step 3: Cross multiply
    147,965,389.70x = 221,948,084.55 × 79,940,941.70
  4. Step 4: Simplify right side
    147,965,389.70x = 17,742,738,887,438,222
  5. Step 5: Solve for x
    x = 17,742,738,887,438,222/147,965,389.70
  6. Step 6: Final answer
    x = 119,911,412.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.