Home / 103,428,476.55-155,142,714.83-45,859,638.15

Finding the Fourth Proportional to 103,428,476.55, 155,142,714.83 and 45,859,638.15

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Solution

The fourth proportional to 103,428,476.55, 155,142,714.83 and 45,859,638.15 is: 68,789,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,428,476.55 : 155,142,714.83 = 45,859,638.15 : x
  2. Step 2: Convert to fraction form
    103,428,476.55/155,142,714.83 = 45,859,638.15/x
  3. Step 3: Cross multiply
    103,428,476.55x = 155,142,714.83 × 45,859,638.15
  4. Step 4: Simplify right side
    103,428,476.55x = 7,114,788,763,483,140
  5. Step 5: Solve for x
    x = 7,114,788,763,483,140/103,428,476.55
  6. Step 6: Final answer
    x = 68,789,457.23

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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.