Home / 253,411,688.64-380,173,520.16-91,849,425.60

Finding the Fourth Proportional to 253,411,688.64, 380,173,520.16 and 91,849,425.60

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Solution

The fourth proportional to 253,411,688.64, 380,173,520.16 and 91,849,425.60 is: 137,794,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,411,688.64 : 380,173,520.16 = 91,849,425.60 : x
  2. Step 2: Convert to fraction form
    253,411,688.64/380,173,520.16 = 91,849,425.60/x
  3. Step 3: Cross multiply
    253,411,688.64x = 380,173,520.16 × 91,849,425.60
  4. Step 4: Simplify right side
    253,411,688.64x = 34,918,719,455,026,020
  5. Step 5: Solve for x
    x = 34,918,719,455,026,020/253,411,688.64
  6. Step 6: Final answer
    x = 137,794,431.04

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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.