Home / 839,808,001.80-1,259,712,002.70-430,905,486.60

Finding the Fourth Proportional to 839,808,001.80, 1,259,712,002.70 and 430,905,486.60

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Solution

The fourth proportional to 839,808,001.80, 1,259,712,002.70 and 430,905,486.60 is: 646,358,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,001.80 : 1,259,712,002.70 = 430,905,486.60 : x
  2. Step 2: Convert to fraction form
    839,808,001.80/1,259,712,002.70 = 430,905,486.60/x
  3. Step 3: Cross multiply
    839,808,001.80x = 1,259,712,002.70 × 430,905,486.60
  4. Step 4: Simplify right side
    839,808,001.80x = 542,816,813,499,304,064
  5. Step 5: Solve for x
    x = 542,816,813,499,304,064/839,808,001.80
  6. Step 6: Final answer
    x = 646,358,229.90

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1.5x scale

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.