Home / 138,805,911.12-191,573,254.81-88,591,807.01

Finding the Fourth Proportional to 138,805,911.12, 191,573,254.81 and 88,591,807.01

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Solution

The fourth proportional to 138,805,911.12, 191,573,254.81 and 88,591,807.01 is: 122,270,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,805,911.12 : 191,573,254.81 = 88,591,807.01 : x
  2. Step 2: Convert to fraction form
    138,805,911.12/191,573,254.81 = 88,591,807.01/x
  3. Step 3: Cross multiply
    138,805,911.12x = 191,573,254.81 × 88,591,807.01
  4. Step 4: Simplify right side
    138,805,911.12x = 16,971,820,818,994,748
  5. Step 5: Solve for x
    x = 16,971,820,818,994,748/138,805,911.12
  6. Step 6: Final answer
    x = 122,270,158.97

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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.