Home / 319,302,004.80-478,953,007.20-89,270,720.40

Finding the Fourth Proportional to 319,302,004.80, 478,953,007.20 and 89,270,720.40

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Solution

The fourth proportional to 319,302,004.80, 478,953,007.20 and 89,270,720.40 is: 133,906,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,302,004.80 : 478,953,007.20 = 89,270,720.40 : x
  2. Step 2: Convert to fraction form
    319,302,004.80/478,953,007.20 = 89,270,720.40/x
  3. Step 3: Cross multiply
    319,302,004.80x = 478,953,007.20 × 89,270,720.40
  4. Step 4: Simplify right side
    319,302,004.80x = 42,756,479,990,490,392
  5. Step 5: Solve for x
    x = 42,756,479,990,490,392/319,302,004.80
  6. Step 6: Final answer
    x = 133,906,080.60

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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.