Home / 272,009,621.48-408,018,861.02-77,920,282.40

Finding the Fourth Proportional to 272,009,621.48, 408,018,861.02 and 77,920,282.40

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Solution

The fourth proportional to 272,009,621.48, 408,018,861.02 and 77,920,282.40 is: 116,881,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,009,621.48 : 408,018,861.02 = 77,920,282.40 : x
  2. Step 2: Convert to fraction form
    272,009,621.48/408,018,861.02 = 77,920,282.40/x
  3. Step 3: Cross multiply
    272,009,621.48x = 408,018,861.02 × 77,920,282.40
  4. Step 4: Simplify right side
    272,009,621.48x = 31,792,944,873,359,456
  5. Step 5: Solve for x
    x = 31,792,944,873,359,456/272,009,621.48
  6. Step 6: Final answer
    x = 116,881,692.28

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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.