Home / 284,478,077.40-427,035,980.70-220,067,428.20

Finding the Fourth Proportional to 284,478,077.40, 427,035,980.70 and 220,067,428.20

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Solution

The fourth proportional to 284,478,077.40, 427,035,980.70 and 220,067,428.20 is: 330,347,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,478,077.40 : 427,035,980.70 = 220,067,428.20 : x
  2. Step 2: Convert to fraction form
    284,478,077.40/427,035,980.70 = 220,067,428.20/x
  3. Step 3: Cross multiply
    284,478,077.40x = 427,035,980.70 × 220,067,428.20
  4. Step 4: Simplify right side
    284,478,077.40x = 93,976,710,021,513,824
  5. Step 5: Solve for x
    x = 93,976,710,021,513,824/284,478,077.40
  6. Step 6: Final answer
    x = 330,347,810.56

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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.