Home / 1,866,251,275.80-2,799,376,913.70-639,011,851.80

Finding the Fourth Proportional to 1,866,251,275.80, 2,799,376,913.70 and 639,011,851.80

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Solution

The fourth proportional to 1,866,251,275.80, 2,799,376,913.70 and 639,011,851.80 is: 958,517,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,251,275.80 : 2,799,376,913.70 = 639,011,851.80 : x
  2. Step 2: Convert to fraction form
    1,866,251,275.80/2,799,376,913.70 = 639,011,851.80/x
  3. Step 3: Cross multiply
    1,866,251,275.80x = 2,799,376,913.70 × 639,011,851.80
  4. Step 4: Simplify right side
    1,866,251,275.80x = 1,788,835,025,509,605,632
  5. Step 5: Solve for x
    x = 1,788,835,025,509,605,632/1,866,251,275.80
  6. Step 6: Final answer
    x = 958,517,777.70

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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.