Home / 1,392,367,989.30-2,088,789,925.71-574,032,946.74

Finding the Fourth Proportional to 1,392,367,989.30, 2,088,789,925.71 and 574,032,946.74

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Solution

The fourth proportional to 1,392,367,989.30, 2,088,789,925.71 and 574,032,946.74 is: 861,147,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,367,989.30 : 2,088,789,925.71 = 574,032,946.74 : x
  2. Step 2: Convert to fraction form
    1,392,367,989.30/2,088,789,925.71 = 574,032,946.74/x
  3. Step 3: Cross multiply
    1,392,367,989.30x = 2,088,789,925.71 × 574,032,946.74
  4. Step 4: Simplify right side
    1,392,367,989.30x = 1,199,034,236,176,136,960
  5. Step 5: Solve for x
    x = 1,199,034,236,176,136,960/1,392,367,989.30
  6. Step 6: Final answer
    x = 861,147,516.60

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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.