Home / 448,021,245.60-672,031,868.40-357,321,981.60

Finding the Fourth Proportional to 448,021,245.60, 672,031,868.40 and 357,321,981.60

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Solution

The fourth proportional to 448,021,245.60, 672,031,868.40 and 357,321,981.60 is: 535,982,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,021,245.60 : 672,031,868.40 = 357,321,981.60 : x
  2. Step 2: Convert to fraction form
    448,021,245.60/672,031,868.40 = 357,321,981.60/x
  3. Step 3: Cross multiply
    448,021,245.60x = 672,031,868.40 × 357,321,981.60
  4. Step 4: Simplify right side
    448,021,245.60x = 240,131,758,915,038,432
  5. Step 5: Solve for x
    x = 240,131,758,915,038,432/448,021,245.60
  6. Step 6: Final answer
    x = 535,982,972.40

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Double scale
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Similar ratio
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1.5x scale

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.