Home / 906,961,656.40-1,360,442,484.60-389,304,005.20

Finding the Fourth Proportional to 906,961,656.40, 1,360,442,484.60 and 389,304,005.20

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Solution

The fourth proportional to 906,961,656.40, 1,360,442,484.60 and 389,304,005.20 is: 583,956,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,961,656.40 : 1,360,442,484.60 = 389,304,005.20 : x
  2. Step 2: Convert to fraction form
    906,961,656.40/1,360,442,484.60 = 389,304,005.20/x
  3. Step 3: Cross multiply
    906,961,656.40x = 1,360,442,484.60 × 389,304,005.20
  4. Step 4: Simplify right side
    906,961,656.40x = 529,625,708,099,019,264
  5. Step 5: Solve for x
    x = 529,625,708,099,019,264/906,961,656.40
  6. Step 6: Final answer
    x = 583,956,007.80

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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.