Home / 78,149,861.04-107,747,695.80-55,849,482.48

Finding the Fourth Proportional to 78,149,861.04, 107,747,695.80 and 55,849,482.48

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Solution

The fourth proportional to 78,149,861.04, 107,747,695.80 and 55,849,482.48 is: 77,001,455.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,861.04 : 107,747,695.80 = 55,849,482.48 : x
  2. Step 2: Convert to fraction form
    78,149,861.04/107,747,695.80 = 55,849,482.48/x
  3. Step 3: Cross multiply
    78,149,861.04x = 107,747,695.80 × 55,849,482.48
  4. Step 4: Simplify right side
    78,149,861.04x = 6,017,653,048,842,469
  5. Step 5: Solve for x
    x = 6,017,653,048,842,469/78,149,861.04
  6. Step 6: Final answer
    x = 77,001,455.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.