Home / 158,389,856.05-218,578,472.16-87,830,437.06

Finding the Fourth Proportional to 158,389,856.05, 218,578,472.16 and 87,830,437.06

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Solution

The fourth proportional to 158,389,856.05, 218,578,472.16 and 87,830,437.06 is: 121,206,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,389,856.05 : 218,578,472.16 = 87,830,437.06 : x
  2. Step 2: Convert to fraction form
    158,389,856.05/218,578,472.16 = 87,830,437.06/x
  3. Step 3: Cross multiply
    158,389,856.05x = 218,578,472.16 × 87,830,437.06
  4. Step 4: Simplify right side
    158,389,856.05x = 19,197,842,741,048,840
  5. Step 5: Solve for x
    x = 19,197,842,741,048,840/158,389,856.05
  6. Step 6: Final answer
    x = 121,206,264.22

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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.