Home / 142,558,154.88-196,730,253.73-77,368,058.88

Finding the Fourth Proportional to 142,558,154.88, 196,730,253.73 and 77,368,058.88

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Solution

The fourth proportional to 142,558,154.88, 196,730,253.73 and 77,368,058.88 is: 106,767,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,558,154.88 : 196,730,253.73 = 77,368,058.88 : x
  2. Step 2: Convert to fraction form
    142,558,154.88/196,730,253.73 = 77,368,058.88/x
  3. Step 3: Cross multiply
    142,558,154.88x = 196,730,253.73 × 77,368,058.88
  4. Step 4: Simplify right side
    142,558,154.88x = 15,220,637,854,059,978
  5. Step 5: Solve for x
    x = 15,220,637,854,059,978/142,558,154.88
  6. Step 6: Final answer
    x = 106,767,921.25

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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.