Home / 158,389,866.15-218,578,486.10-87,830,447.18

Finding the Fourth Proportional to 158,389,866.15, 218,578,486.10 and 87,830,447.18

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Solution

The fourth proportional to 158,389,866.15, 218,578,486.10 and 87,830,447.18 is: 121,206,278.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,389,866.15 : 218,578,486.10 = 87,830,447.18 : x
  2. Step 2: Convert to fraction form
    158,389,866.15/218,578,486.10 = 87,830,447.18/x
  3. Step 3: Cross multiply
    158,389,866.15x = 218,578,486.10 × 87,830,447.18
  4. Step 4: Simplify right side
    158,389,866.15x = 19,197,846,176,558,368
  5. Step 5: Solve for x
    x = 19,197,846,176,558,368/158,389,866.15
  6. Step 6: Final answer
    x = 121,206,278.17

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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.