Home / 1,287,615,150.68-1,776,807,599.10-730,698,192.28

Finding the Fourth Proportional to 1,287,615,150.68, 1,776,807,599.10 and 730,698,192.28

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Solution

The fourth proportional to 1,287,615,150.68, 1,776,807,599.10 and 730,698,192.28 is: 1,008,306,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,615,150.68 : 1,776,807,599.10 = 730,698,192.28 : x
  2. Step 2: Convert to fraction form
    1,287,615,150.68/1,776,807,599.10 = 730,698,192.28/x
  3. Step 3: Cross multiply
    1,287,615,150.68x = 1,776,807,599.10 × 730,698,192.28
  4. Step 4: Simplify right side
    1,287,615,150.68x = 1,298,310,100,691,736,832
  5. Step 5: Solve for x
    x = 1,298,310,100,691,736,832/1,287,615,150.68
  6. Step 6: Final answer
    x = 1,008,306,014.42

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1.5x scale

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.