Home / 347,004,013.60-520,506,020.40-331,698,512.80

Finding the Fourth Proportional to 347,004,013.60, 520,506,020.40 and 331,698,512.80

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Solution

The fourth proportional to 347,004,013.60, 520,506,020.40 and 331,698,512.80 is: 497,547,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,004,013.60 : 520,506,020.40 = 331,698,512.80 : x
  2. Step 2: Convert to fraction form
    347,004,013.60/520,506,020.40 = 331,698,512.80/x
  3. Step 3: Cross multiply
    347,004,013.60x = 520,506,020.40 × 331,698,512.80
  4. Step 4: Simplify right side
    347,004,013.60x = 172,651,072,870,126,464
  5. Step 5: Solve for x
    x = 172,651,072,870,126,464/347,004,013.60
  6. Step 6: Final answer
    x = 497,547,769.20

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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.