Home / 75,158,128.14-103,681,360.08-65,221,063.74

Finding the Fourth Proportional to 75,158,128.14, 103,681,360.08 and 65,221,063.74

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Solution

The fourth proportional to 75,158,128.14, 103,681,360.08 and 65,221,063.74 is: 89,973,084.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,158,128.14 : 103,681,360.08 = 65,221,063.74 : x
  2. Step 2: Convert to fraction form
    75,158,128.14/103,681,360.08 = 65,221,063.74/x
  3. Step 3: Cross multiply
    75,158,128.14x = 103,681,360.08 × 65,221,063.74
  4. Step 4: Simplify right side
    75,158,128.14x = 6,762,208,594,427,572
  5. Step 5: Solve for x
    x = 6,762,208,594,427,572/75,158,128.14
  6. Step 6: Final answer
    x = 89,973,084.24

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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.