Home / 268,587,123.40-402,980,217.90-86,840,230.60

Finding the Fourth Proportional to 268,587,123.40, 402,980,217.90 and 86,840,230.60

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Solution

The fourth proportional to 268,587,123.40, 402,980,217.90 and 86,840,230.60 is: 130,292,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,587,123.40 : 402,980,217.90 = 86,840,230.60 : x
  2. Step 2: Convert to fraction form
    268,587,123.40/402,980,217.90 = 86,840,230.60/x
  3. Step 3: Cross multiply
    268,587,123.40x = 402,980,217.90 × 86,840,230.60
  4. Step 4: Simplify right side
    268,587,123.40x = 34,994,895,049,674,244
  5. Step 5: Solve for x
    x = 34,994,895,049,674,244/268,587,123.40
  6. Step 6: Final answer
    x = 130,292,527.08

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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.