Home / 839,808,082.80-1,259,712,124.20-430,905,567.60

Finding the Fourth Proportional to 839,808,082.80, 1,259,712,124.20 and 430,905,567.60

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Solution

The fourth proportional to 839,808,082.80, 1,259,712,124.20 and 430,905,567.60 is: 646,358,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,082.80 : 1,259,712,124.20 = 430,905,567.60 : x
  2. Step 2: Convert to fraction form
    839,808,082.80/1,259,712,124.20 = 430,905,567.60/x
  3. Step 3: Cross multiply
    839,808,082.80x = 1,259,712,124.20 × 430,905,567.60
  4. Step 4: Simplify right side
    839,808,082.80x = 542,816,967,891,002,752
  5. Step 5: Solve for x
    x = 542,816,967,891,002,752/839,808,082.80
  6. Step 6: Final answer
    x = 646,358,351.40

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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.