Home / 87,116,795.28-130,346,857.80-51,971,938.56

Finding the Fourth Proportional to 87,116,795.28, 130,346,857.80 and 51,971,938.56

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Solution

The fourth proportional to 87,116,795.28, 130,346,857.80 and 51,971,938.56 is: 77,762,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,116,795.28 : 130,346,857.80 = 51,971,938.56 : x
  2. Step 2: Convert to fraction form
    87,116,795.28/130,346,857.80 = 51,971,938.56/x
  3. Step 3: Cross multiply
    87,116,795.28x = 130,346,857.80 × 51,971,938.56
  4. Step 4: Simplify right side
    87,116,795.28x = 6,774,378,885,070,657
  5. Step 5: Solve for x
    x = 6,774,378,885,070,657/87,116,795.28
  6. Step 6: Final answer
    x = 77,762,030.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.