Home / 1,079,730,122.56-1,619,260,414.08-389,547,681.28

Finding the Fourth Proportional to 1,079,730,122.56, 1,619,260,414.08 and 389,547,681.28

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Solution

The fourth proportional to 1,079,730,122.56, 1,619,260,414.08 and 389,547,681.28 is: 584,200,742.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,730,122.56 : 1,619,260,414.08 = 389,547,681.28 : x
  2. Step 2: Convert to fraction form
    1,079,730,122.56/1,619,260,414.08 = 389,547,681.28/x
  3. Step 3: Cross multiply
    1,079,730,122.56x = 1,619,260,414.08 × 389,547,681.28
  4. Step 4: Simplify right side
    1,079,730,122.56x = 630,779,139,693,356,544
  5. Step 5: Solve for x
    x = 630,779,139,693,356,544/1,079,730,122.56
  6. Step 6: Final answer
    x = 584,200,742.87

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1.5x scale

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.