Home / 782,859,547.30-1,175,196,002.55-420,062,491.30

Finding the Fourth Proportional to 782,859,547.30, 1,175,196,002.55 and 420,062,491.30

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Solution

The fourth proportional to 782,859,547.30, 1,175,196,002.55 and 420,062,491.30 is: 630,580,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,859,547.30 : 1,175,196,002.55 = 420,062,491.30 : x
  2. Step 2: Convert to fraction form
    782,859,547.30/1,175,196,002.55 = 420,062,491.30/x
  3. Step 3: Cross multiply
    782,859,547.30x = 1,175,196,002.55 × 420,062,491.30
  4. Step 4: Simplify right side
    782,859,547.30x = 493,655,760,596,954,176
  5. Step 5: Solve for x
    x = 493,655,760,596,954,176/782,859,547.30
  6. Step 6: Final answer
    x = 630,580,239.20

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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.