Home / 78,176,549.76-107,883,765.12-43,369,241.28

Finding the Fourth Proportional to 78,176,549.76, 107,883,765.12 and 43,369,241.28

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Solution

The fourth proportional to 78,176,549.76, 107,883,765.12 and 43,369,241.28 is: 59,849,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,176,549.76 : 107,883,765.12 = 43,369,241.28 : x
  2. Step 2: Convert to fraction form
    78,176,549.76/107,883,765.12 = 43,369,241.28/x
  3. Step 3: Cross multiply
    78,176,549.76x = 107,883,765.12 × 43,369,241.28
  4. Step 4: Simplify right side
    78,176,549.76x = 4,678,837,039,684,128
  5. Step 5: Solve for x
    x = 4,678,837,039,684,128/78,176,549.76
  6. Step 6: Final answer
    x = 59,849,623.12

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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.