Home / 268,406,888.36-402,726,916.64-145,671,917.81

Finding the Fourth Proportional to 268,406,888.36, 402,726,916.64 and 145,671,917.81

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Solution

The fourth proportional to 268,406,888.36, 402,726,916.64 and 145,671,917.81 is: 218,571,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,406,888.36 : 402,726,916.64 = 145,671,917.81 : x
  2. Step 2: Convert to fraction form
    268,406,888.36/402,726,916.64 = 145,671,917.81/x
  3. Step 3: Cross multiply
    268,406,888.36x = 402,726,916.64 × 145,671,917.81
  4. Step 4: Simplify right side
    268,406,888.36x = 58,666,002,299,007,344
  5. Step 5: Solve for x
    x = 58,666,002,299,007,344/268,406,888.36
  6. Step 6: Final answer
    x = 218,571,150.16

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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.