Home / 1,121,057,048.61-1,547,028,754.02-619,255,032.21

Finding the Fourth Proportional to 1,121,057,048.61, 1,547,028,754.02 and 619,255,032.21

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Solution

The fourth proportional to 1,121,057,048.61, 1,547,028,754.02 and 619,255,032.21 is: 854,555,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,057,048.61 : 1,547,028,754.02 = 619,255,032.21 : x
  2. Step 2: Convert to fraction form
    1,121,057,048.61/1,547,028,754.02 = 619,255,032.21/x
  3. Step 3: Cross multiply
    1,121,057,048.61x = 1,547,028,754.02 × 619,255,032.21
  4. Step 4: Simplify right side
    1,121,057,048.61x = 958,005,340,900,451,328
  5. Step 5: Solve for x
    x = 958,005,340,900,451,328/1,121,057,048.61
  6. Step 6: Final answer
    x = 854,555,387.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.