Home / 71,043,281.69-98,038,693.91-39,681,776.88

Finding the Fourth Proportional to 71,043,281.69, 98,038,693.91 and 39,681,776.88

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Solution

The fourth proportional to 71,043,281.69, 98,038,693.91 and 39,681,776.88 is: 54,760,274.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043,281.69 : 98,038,693.91 = 39,681,776.88 : x
  2. Step 2: Convert to fraction form
    71,043,281.69/98,038,693.91 = 39,681,776.88/x
  3. Step 3: Cross multiply
    71,043,281.69x = 98,038,693.91 × 39,681,776.88
  4. Step 4: Simplify right side
    71,043,281.69x = 3,890,349,577,442,439.50
  5. Step 5: Solve for x
    x = 3,890,349,577,442,439.50/71,043,281.69
  6. Step 6: Final answer
    x = 54,760,274.09

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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.