Home / 999,946,547.71-1,493,838,002.12-647,319,912.86

Finding the Fourth Proportional to 999,946,547.71, 1,493,838,002.12 and 647,319,912.86

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Solution

The fourth proportional to 999,946,547.71, 1,493,838,002.12 and 647,319,912.86 is: 967,042,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,946,547.71 : 1,493,838,002.12 = 647,319,912.86 : x
  2. Step 2: Convert to fraction form
    999,946,547.71/1,493,838,002.12 = 647,319,912.86/x
  3. Step 3: Cross multiply
    999,946,547.71x = 1,493,838,002.12 × 647,319,912.86
  4. Step 4: Simplify right side
    999,946,547.71x = 966,991,085,363,397,760
  5. Step 5: Solve for x
    x = 966,991,085,363,397,760/999,946,547.71
  6. Step 6: Final answer
    x = 967,042,776.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.