Home / 327,168,020.40-490,752,030.60-97,172,602.80

Finding the Fourth Proportional to 327,168,020.40, 490,752,030.60 and 97,172,602.80

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Solution

The fourth proportional to 327,168,020.40, 490,752,030.60 and 97,172,602.80 is: 145,758,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,168,020.40 : 490,752,030.60 = 97,172,602.80 : x
  2. Step 2: Convert to fraction form
    327,168,020.40/490,752,030.60 = 97,172,602.80/x
  3. Step 3: Cross multiply
    327,168,020.40x = 490,752,030.60 × 97,172,602.80
  4. Step 4: Simplify right side
    327,168,020.40x = 47,687,652,142,787,248
  5. Step 5: Solve for x
    x = 47,687,652,142,787,248/327,168,020.40
  6. Step 6: Final answer
    x = 145,758,904.20

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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.