Home / 1,290,468,233,250.30-1,934,748,069,560.10-780,413,606,473.55

Finding the Fourth Proportional to 1,290,468,233,250.30, 1,934,748,069,560.10 and 780,413,606,473.55

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Solution

The fourth proportional to 1,290,468,233,250.30, 1,934,748,069,560.10 and 780,413,606,473.55 is: 1,170,043,306,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,468,233,250.30 : 1,934,748,069,560.10 = 780,413,606,473.55 : x
  2. Step 2: Convert to fraction form
    1,290,468,233,250.30/1,934,748,069,560.10 = 780,413,606,473.55/x
  3. Step 3: Cross multiply
    1,290,468,233,250.30x = 1,934,748,069,560.10 × 780,413,606,473.55
  4. Step 4: Simplify right side
    1,290,468,233,250.30x = 1,509,903,718,583,136,642,138,112
  5. Step 5: Solve for x
    x = 1,509,903,718,583,136,642,138,112/1,290,468,233,250.30
  6. Step 6: Final answer
    x = 1,170,043,306,513.75

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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.