Home / 328,142,604.30-492,176,581.65-85,830,002.70

Finding the Fourth Proportional to 328,142,604.30, 492,176,581.65 and 85,830,002.70

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Solution

The fourth proportional to 328,142,604.30, 492,176,581.65 and 85,830,002.70 is: 128,735,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,142,604.30 : 492,176,581.65 = 85,830,002.70 : x
  2. Step 2: Convert to fraction form
    328,142,604.30/492,176,581.65 = 85,830,002.70/x
  3. Step 3: Cross multiply
    328,142,604.30x = 492,176,581.65 × 85,830,002.70
  4. Step 4: Simplify right side
    328,142,604.30x = 42,243,517,331,896,272
  5. Step 5: Solve for x
    x = 42,243,517,331,896,272/328,142,604.30
  6. Step 6: Final answer
    x = 128,735,241.26

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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.