Home / 268,272,876.60-402,409,314.90-258,069,209.40

Finding the Fourth Proportional to 268,272,876.60, 402,409,314.90 and 258,069,209.40

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Solution

The fourth proportional to 268,272,876.60, 402,409,314.90 and 258,069,209.40 is: 387,103,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272,876.60 : 402,409,314.90 = 258,069,209.40 : x
  2. Step 2: Convert to fraction form
    268,272,876.60/402,409,314.90 = 258,069,209.40/x
  3. Step 3: Cross multiply
    268,272,876.60x = 402,409,314.90 × 258,069,209.40
  4. Step 4: Simplify right side
    268,272,876.60x = 103,849,453,751,438,640
  5. Step 5: Solve for x
    x = 103,849,453,751,438,640/268,272,876.60
  6. Step 6: Final answer
    x = 387,103,814.10

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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.