Home / 400,902,898,151.59-553,256,484,858-218,010,696,458.13

Finding the Fourth Proportional to 400,902,898,151.59, 553,256,484,858 and 218,010,696,458.13

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Solution

The fourth proportional to 400,902,898,151.59, 553,256,484,858 and 218,010,696,458.13 is: 300,860,463,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,902,898,151.59 : 553,256,484,858 = 218,010,696,458.13 : x
  2. Step 2: Convert to fraction form
    400,902,898,151.59/553,256,484,858 = 218,010,696,458.13/x
  3. Step 3: Cross multiply
    400,902,898,151.59x = 553,256,484,858 × 218,010,696,458.13
  4. Step 4: Simplify right side
    400,902,898,151.59x = 120,615,831,583,869,437,476,864
  5. Step 5: Solve for x
    x = 120,615,831,583,869,437,476,864/400,902,898,151.59
  6. Step 6: Final answer
    x = 300,860,463,069.69

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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.