Home / 123,700,638.71-170,702,204.45-68,700,038.15

Finding the Fourth Proportional to 123,700,638.71, 170,702,204.45 and 68,700,038.15

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Solution

The fourth proportional to 123,700,638.71, 170,702,204.45 and 68,700,038.15 is: 94,803,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,700,638.71 : 170,702,204.45 = 68,700,038.15 : x
  2. Step 2: Convert to fraction form
    123,700,638.71/170,702,204.45 = 68,700,038.15/x
  3. Step 3: Cross multiply
    123,700,638.71x = 170,702,204.45 × 68,700,038.15
  4. Step 4: Simplify right side
    123,700,638.71x = 11,727,247,958,087,356
  5. Step 5: Solve for x
    x = 11,727,247,958,087,356/123,700,638.71
  6. Step 6: Final answer
    x = 94,803,455.18

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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.