Home / 820,061,831.60-1,131,684,590.67-462,904,802.36

Finding the Fourth Proportional to 820,061,831.60, 1,131,684,590.67 and 462,904,802.36

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Solution

The fourth proportional to 820,061,831.60, 1,131,684,590.67 and 462,904,802.36 is: 638,808,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,061,831.60 : 1,131,684,590.67 = 462,904,802.36 : x
  2. Step 2: Convert to fraction form
    820,061,831.60/1,131,684,590.67 = 462,904,802.36/x
  3. Step 3: Cross multiply
    820,061,831.60x = 1,131,684,590.67 × 462,904,802.36
  4. Step 4: Simplify right side
    820,061,831.60x = 523,862,231,777,953,920
  5. Step 5: Solve for x
    x = 523,862,231,777,953,920/820,061,831.60
  6. Step 6: Final answer
    x = 638,808,211.27

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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.