Home / 890,908,667.20-1,336,841,297.70-373,391,421.40

Finding the Fourth Proportional to 890,908,667.20, 1,336,841,297.70 and 373,391,421.40

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Solution

The fourth proportional to 890,908,667.20, 1,336,841,297.70 and 373,391,421.40 is: 560,287,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,908,667.20 : 1,336,841,297.70 = 373,391,421.40 : x
  2. Step 2: Convert to fraction form
    890,908,667.20/1,336,841,297.70 = 373,391,421.40/x
  3. Step 3: Cross multiply
    890,908,667.20x = 1,336,841,297.70 × 373,391,421.40
  4. Step 4: Simplify right side
    890,908,667.20x = 499,165,072,334,423,552
  5. Step 5: Solve for x
    x = 499,165,072,334,423,552/890,908,667.20
  6. Step 6: Final answer
    x = 560,287,592.56

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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.