Home / 260,347,753.90-388,221,428.98-258,010,988.14

Finding the Fourth Proportional to 260,347,753.90, 388,221,428.98 and 258,010,988.14

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Solution

The fourth proportional to 260,347,753.90, 388,221,428.98 and 258,010,988.14 is: 384,736,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,347,753.90 : 388,221,428.98 = 258,010,988.14 : x
  2. Step 2: Convert to fraction form
    260,347,753.90/388,221,428.98 = 258,010,988.14/x
  3. Step 3: Cross multiply
    260,347,753.90x = 388,221,428.98 × 258,010,988.14
  4. Step 4: Simplify right side
    260,347,753.90x = 100,165,394,508,252,624
  5. Step 5: Solve for x
    x = 100,165,394,508,252,624/260,347,753.90
  6. Step 6: Final answer
    x = 384,736,925.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.