Home / 1,157,220,006.29-1,735,825,285.51-420,288,486.29

Finding the Fourth Proportional to 1,157,220,006.29, 1,735,825,285.51 and 420,288,486.29

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Solution

The fourth proportional to 1,157,220,006.29, 1,735,825,285.51 and 420,288,486.29 is: 630,431,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,220,006.29 : 1,735,825,285.51 = 420,288,486.29 : x
  2. Step 2: Convert to fraction form
    1,157,220,006.29/1,735,825,285.51 = 420,288,486.29/x
  3. Step 3: Cross multiply
    1,157,220,006.29x = 1,735,825,285.51 × 420,288,486.29
  4. Step 4: Simplify right side
    1,157,220,006.29x = 729,547,381,701,175,168
  5. Step 5: Solve for x
    x = 729,547,381,701,175,168/1,157,220,006.29
  6. Step 6: Final answer
    x = 630,431,013.76

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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.