Home / 1,294,581,403.20-1,942,061,061.60-421,034,116.80

Finding the Fourth Proportional to 1,294,581,403.20, 1,942,061,061.60 and 421,034,116.80

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Solution

The fourth proportional to 1,294,581,403.20, 1,942,061,061.60 and 421,034,116.80 is: 631,612,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,581,403.20 : 1,942,061,061.60 = 421,034,116.80 : x
  2. Step 2: Convert to fraction form
    1,294,581,403.20/1,942,061,061.60 = 421,034,116.80/x
  3. Step 3: Cross multiply
    1,294,581,403.20x = 1,942,061,061.60 × 421,034,116.80
  4. Step 4: Simplify right side
    1,294,581,403.20x = 817,673,963,842,426,368
  5. Step 5: Solve for x
    x = 817,673,963,842,426,368/1,294,581,403.20
  6. Step 6: Final answer
    x = 631,612,629.24

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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.