Home / 811,976,271.93-1,120,399,264.49-472,940,545.05

Finding the Fourth Proportional to 811,976,271.93, 1,120,399,264.49 and 472,940,545.05

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Solution

The fourth proportional to 811,976,271.93, 1,120,399,264.49 and 472,940,545.05 is: 652,583,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,976,271.93 : 1,120,399,264.49 = 472,940,545.05 : x
  2. Step 2: Convert to fraction form
    811,976,271.93/1,120,399,264.49 = 472,940,545.05/x
  3. Step 3: Cross multiply
    811,976,271.93x = 1,120,399,264.49 × 472,940,545.05
  4. Step 4: Simplify right side
    811,976,271.93x = 529,882,238,819,154,944
  5. Step 5: Solve for x
    x = 529,882,238,819,154,944/811,976,271.93
  6. Step 6: Final answer
    x = 652,583,403.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.