Home / 131,121,143.40-196,681,715.10-124,402,679.40

Finding the Fourth Proportional to 131,121,143.40, 196,681,715.10 and 124,402,679.40

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Solution

The fourth proportional to 131,121,143.40, 196,681,715.10 and 124,402,679.40 is: 186,604,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,121,143.40 : 196,681,715.10 = 124,402,679.40 : x
  2. Step 2: Convert to fraction form
    131,121,143.40/196,681,715.10 = 124,402,679.40/x
  3. Step 3: Cross multiply
    131,121,143.40x = 196,681,715.10 × 124,402,679.40
  4. Step 4: Simplify right side
    131,121,143.40x = 24,467,732,347,427,440
  5. Step 5: Solve for x
    x = 24,467,732,347,427,440/131,121,143.40
  6. Step 6: Final answer
    x = 186,604,019.10

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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.