Home / 1,513,748,278.40-2,270,197,264.80-478,926,363.20

Finding the Fourth Proportional to 1,513,748,278.40, 2,270,197,264.80 and 478,926,363.20

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Solution

The fourth proportional to 1,513,748,278.40, 2,270,197,264.80 and 478,926,363.20 is: 718,255,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,748,278.40 : 2,270,197,264.80 = 478,926,363.20 : x
  2. Step 2: Convert to fraction form
    1,513,748,278.40/2,270,197,264.80 = 478,926,363.20/x
  3. Step 3: Cross multiply
    1,513,748,278.40x = 2,270,197,264.80 × 478,926,363.20
  4. Step 4: Simplify right side
    1,513,748,278.40x = 1,087,257,319,777,251,456
  5. Step 5: Solve for x
    x = 1,087,257,319,777,251,456/1,513,748,278.40
  6. Step 6: Final answer
    x = 718,255,033.08

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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.