Home / 87,249,719.40-130,874,579.10-73,812,791.40

Finding the Fourth Proportional to 87,249,719.40, 130,874,579.10 and 73,812,791.40

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Solution

The fourth proportional to 87,249,719.40, 130,874,579.10 and 73,812,791.40 is: 110,719,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,249,719.40 : 130,874,579.10 = 73,812,791.40 : x
  2. Step 2: Convert to fraction form
    87,249,719.40/130,874,579.10 = 73,812,791.40/x
  3. Step 3: Cross multiply
    87,249,719.40x = 130,874,579.10 × 73,812,791.40
  4. Step 4: Simplify right side
    87,249,719.40x = 9,660,218,006,671,100
  5. Step 5: Solve for x
    x = 9,660,218,006,671,100/87,249,719.40
  6. Step 6: Final answer
    x = 110,719,187.10

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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.