Home / 275,038,984.50-379,607,715.45-157,643,000.16

Finding the Fourth Proportional to 275,038,984.50, 379,607,715.45 and 157,643,000.16

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Solution

The fourth proportional to 275,038,984.50, 379,607,715.45 and 157,643,000.16 is: 217,578,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,038,984.50 : 379,607,715.45 = 157,643,000.16 : x
  2. Step 2: Convert to fraction form
    275,038,984.50/379,607,715.45 = 157,643,000.16/x
  3. Step 3: Cross multiply
    275,038,984.50x = 379,607,715.45 × 157,643,000.16
  4. Step 4: Simplify right side
    275,038,984.50x = 59,842,499,147,421,584
  5. Step 5: Solve for x
    x = 59,842,499,147,421,584/275,038,984.50
  6. Step 6: Final answer
    x = 217,578,243.52

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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.