Home / 86,142,425.60-129,169,315.20-25,550,278.40

Finding the Fourth Proportional to 86,142,425.60, 129,169,315.20 and 25,550,278.40

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Solution

The fourth proportional to 86,142,425.60, 129,169,315.20 and 25,550,278.40 is: 38,312,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,142,425.60 : 129,169,315.20 = 25,550,278.40 : x
  2. Step 2: Convert to fraction form
    86,142,425.60/129,169,315.20 = 25,550,278.40/x
  3. Step 3: Cross multiply
    86,142,425.60x = 129,169,315.20 × 25,550,278.40
  4. Step 4: Simplify right side
    86,142,425.60x = 3,300,311,964,097,351.50
  5. Step 5: Solve for x
    x = 3,300,311,964,097,351.50/86,142,425.60
  6. Step 6: Final answer
    x = 38,312,271.12

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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.