Home / 87,249,920.40-130,874,880.60-73,812,992.40

Finding the Fourth Proportional to 87,249,920.40, 130,874,880.60 and 73,812,992.40

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Solution

The fourth proportional to 87,249,920.40, 130,874,880.60 and 73,812,992.40 is: 110,719,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,249,920.40 : 130,874,880.60 = 73,812,992.40 : x
  2. Step 2: Convert to fraction form
    87,249,920.40/130,874,880.60 = 73,812,992.40/x
  3. Step 3: Cross multiply
    87,249,920.40x = 130,874,880.60 × 73,812,992.40
  4. Step 4: Simplify right side
    87,249,920.40x = 9,660,266,567,078,708
  5. Step 5: Solve for x
    x = 9,660,266,567,078,708/87,249,920.40
  6. Step 6: Final answer
    x = 110,719,488.60

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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.