Home / 78,144,304.02-117,227,235.02-45,370,307.71

Finding the Fourth Proportional to 78,144,304.02, 117,227,235.02 and 45,370,307.71

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Solution

The fourth proportional to 78,144,304.02, 117,227,235.02 and 45,370,307.71 is: 68,061,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,144,304.02 : 117,227,235.02 = 45,370,307.71 : x
  2. Step 2: Convert to fraction form
    78,144,304.02/117,227,235.02 = 45,370,307.71/x
  3. Step 3: Cross multiply
    78,144,304.02x = 117,227,235.02 × 45,370,307.71
  4. Step 4: Simplify right side
    78,144,304.02x = 5,318,635,724,849,888
  5. Step 5: Solve for x
    x = 5,318,635,724,849,888/78,144,304.02
  6. Step 6: Final answer
    x = 68,061,719.81

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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.