Home / 400,902,898,152.59-553,256,484,859.38-218,010,696,459.13

Finding the Fourth Proportional to 400,902,898,152.59, 553,256,484,859.38 and 218,010,696,459.13

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Solution

The fourth proportional to 400,902,898,152.59, 553,256,484,859.38 and 218,010,696,459.13 is: 300,860,463,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,902,898,152.59 : 553,256,484,859.38 = 218,010,696,459.13 : x
  2. Step 2: Convert to fraction form
    400,902,898,152.59/553,256,484,859.38 = 218,010,696,459.13/x
  3. Step 3: Cross multiply
    400,902,898,152.59x = 553,256,484,859.38 × 218,010,696,459.13
  4. Step 4: Simplify right side
    400,902,898,152.59x = 120,615,831,584,723,548,766,208
  5. Step 5: Solve for x
    x = 120,615,831,584,723,548,766,208/400,902,898,152.59
  6. Step 6: Final answer
    x = 300,860,463,071.07

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1.5x scale

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.