Home / 247,613,123.40-370,537,886.70-215,616,438.60

Finding the Fourth Proportional to 247,613,123.40, 370,537,886.70 and 215,616,438.60

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Solution

The fourth proportional to 247,613,123.40, 370,537,886.70 and 215,616,438.60 is: 322,656,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,613,123.40 : 370,537,886.70 = 215,616,438.60 : x
  2. Step 2: Convert to fraction form
    247,613,123.40/370,537,886.70 = 215,616,438.60/x
  3. Step 3: Cross multiply
    247,613,123.40x = 370,537,886.70 × 215,616,438.60
  4. Step 4: Simplify right side
    247,613,123.40x = 79,894,059,496,624,304
  5. Step 5: Solve for x
    x = 79,894,059,496,624,304/247,613,123.40
  6. Step 6: Final answer
    x = 322,656,805.91

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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.