Home / 1,011,345,296.58-1,517,019,896.43-389,853,196.74

Finding the Fourth Proportional to 1,011,345,296.58, 1,517,019,896.43 and 389,853,196.74

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Solution

The fourth proportional to 1,011,345,296.58, 1,517,019,896.43 and 389,853,196.74 is: 584,780,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,345,296.58 : 1,517,019,896.43 = 389,853,196.74 : x
  2. Step 2: Convert to fraction form
    1,011,345,296.58/1,517,019,896.43 = 389,853,196.74/x
  3. Step 3: Cross multiply
    1,011,345,296.58x = 1,517,019,896.43 × 389,853,196.74
  4. Step 4: Simplify right side
    1,011,345,296.58x = 591,415,056,141,419,264
  5. Step 5: Solve for x
    x = 591,415,056,141,419,264/1,011,345,296.58
  6. Step 6: Final answer
    x = 584,780,547.40

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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.