Home / 268,406,886.48-402,726,913.83-145,671,915.93

Finding the Fourth Proportional to 268,406,886.48, 402,726,913.83 and 145,671,915.93

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Solution

The fourth proportional to 268,406,886.48, 402,726,913.83 and 145,671,915.93 is: 218,571,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,406,886.48 : 402,726,913.83 = 145,671,915.93 : x
  2. Step 2: Convert to fraction form
    268,406,886.48/402,726,913.83 = 145,671,915.93/x
  3. Step 3: Cross multiply
    268,406,886.48x = 402,726,913.83 × 145,671,915.93
  4. Step 4: Simplify right side
    268,406,886.48x = 58,666,001,134,192,112
  5. Step 5: Solve for x
    x = 58,666,001,134,192,112/268,406,886.48
  6. Step 6: Final answer
    x = 218,571,147.35

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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.