Home / 399,690,483.75-551,403,969.57-267,574,040.55

Finding the Fourth Proportional to 399,690,483.75, 551,403,969.57 and 267,574,040.55

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Solution

The fourth proportional to 399,690,483.75, 551,403,969.57 and 267,574,040.55 is: 369,139,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,690,483.75 : 551,403,969.57 = 267,574,040.55 : x
  2. Step 2: Convert to fraction form
    399,690,483.75/551,403,969.57 = 267,574,040.55/x
  3. Step 3: Cross multiply
    399,690,483.75x = 551,403,969.57 × 267,574,040.55
  4. Step 4: Simplify right side
    399,690,483.75x = 147,541,388,113,154,176
  5. Step 5: Solve for x
    x = 147,541,388,113,154,176/399,690,483.75
  6. Step 6: Final answer
    x = 369,139,106.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.