Home / 78,482,061.90-117,643,955.40-49,356,715.32

Finding the Fourth Proportional to 78,482,061.90, 117,643,955.40 and 49,356,715.32

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Solution

The fourth proportional to 78,482,061.90, 117,643,955.40 and 49,356,715.32 is: 73,985,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,482,061.90 : 117,643,955.40 = 49,356,715.32 : x
  2. Step 2: Convert to fraction form
    78,482,061.90/117,643,955.40 = 49,356,715.32/x
  3. Step 3: Cross multiply
    78,482,061.90x = 117,643,955.40 × 49,356,715.32
  4. Step 4: Simplify right side
    78,482,061.90x = 5,806,519,215,796,577
  5. Step 5: Solve for x
    x = 5,806,519,215,796,577/78,482,061.90
  6. Step 6: Final answer
    x = 73,985,304.10

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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.