Home / 839,755,870.80-1,158,863,600.28-468,477,902.18

Finding the Fourth Proportional to 839,755,870.80, 1,158,863,600.28 and 468,477,902.18

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Solution

The fourth proportional to 839,755,870.80, 1,158,863,600.28 and 468,477,902.18 is: 646,499,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,755,870.80 : 1,158,863,600.28 = 468,477,902.18 : x
  2. Step 2: Convert to fraction form
    839,755,870.80/1,158,863,600.28 = 468,477,902.18/x
  3. Step 3: Cross multiply
    839,755,870.80x = 1,158,863,600.28 × 468,477,902.18
  4. Step 4: Simplify right side
    839,755,870.80x = 542,901,988,370,721,856
  5. Step 5: Solve for x
    x = 542,901,988,370,721,856/839,755,870.80
  6. Step 6: Final answer
    x = 646,499,783.15

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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.