Home / 147,652,068.30-221,478,102.45-78,777,314.70

Finding the Fourth Proportional to 147,652,068.30, 221,478,102.45 and 78,777,314.70

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Solution

The fourth proportional to 147,652,068.30, 221,478,102.45 and 78,777,314.70 is: 118,165,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,652,068.30 : 221,478,102.45 = 78,777,314.70 : x
  2. Step 2: Convert to fraction form
    147,652,068.30/221,478,102.45 = 78,777,314.70/x
  3. Step 3: Cross multiply
    147,652,068.30x = 221,478,102.45 × 78,777,314.70
  4. Step 4: Simplify right side
    147,652,068.30x = 17,447,450,175,862,490
  5. Step 5: Solve for x
    x = 17,447,450,175,862,490/147,652,068.30
  6. Step 6: Final answer
    x = 118,165,972.05

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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.