Home / 130,815,365.29-180,468,480.13-77,862,381.07

Finding the Fourth Proportional to 130,815,365.29, 180,468,480.13 and 77,862,381.07

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Solution

The fourth proportional to 130,815,365.29, 180,468,480.13 and 77,862,381.07 is: 107,416,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,815,365.29 : 180,468,480.13 = 77,862,381.07 : x
  2. Step 2: Convert to fraction form
    130,815,365.29/180,468,480.13 = 77,862,381.07/x
  3. Step 3: Cross multiply
    130,815,365.29x = 180,468,480.13 × 77,862,381.07
  4. Step 4: Simplify right side
    130,815,365.29x = 14,051,705,571,005,782
  5. Step 5: Solve for x
    x = 14,051,705,571,005,782/130,815,365.29
  6. Step 6: Final answer
    x = 107,416,323.30

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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.