Home / 1,398,068,114,332.60-1,929,054,181,532.80-780,675,837,487.20

Finding the Fourth Proportional to 1,398,068,114,332.60, 1,929,054,181,532.80 and 780,675,837,487.20

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Solution

The fourth proportional to 1,398,068,114,332.60, 1,929,054,181,532.80 and 780,675,837,487.20 is: 1,077,176,407,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,068,114,332.60 : 1,929,054,181,532.80 = 780,675,837,487.20 : x
  2. Step 2: Convert to fraction form
    1,398,068,114,332.60/1,929,054,181,532.80 = 780,675,837,487.20/x
  3. Step 3: Cross multiply
    1,398,068,114,332.60x = 1,929,054,181,532.80 × 780,675,837,487.20
  4. Step 4: Simplify right side
    1,398,068,114,332.60x = 1,505,965,988,726,303,856,001,024
  5. Step 5: Solve for x
    x = 1,505,965,988,726,303,856,001,024/1,398,068,114,332.60
  6. Step 6: Final answer
    x = 1,077,176,407,420.76

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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.