Home / 388,272,753.28-535,828,003-212,069,061.12

Finding the Fourth Proportional to 388,272,753.28, 535,828,003 and 212,069,061.12

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Solution

The fourth proportional to 388,272,753.28, 535,828,003 and 212,069,061.12 is: 292,661,642.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,272,753.28 : 535,828,003 = 212,069,061.12 : x
  2. Step 2: Convert to fraction form
    388,272,753.28/535,828,003 = 212,069,061.12/x
  3. Step 3: Cross multiply
    388,272,753.28x = 535,828,003 × 212,069,061.12
  4. Step 4: Simplify right side
    388,272,753.28x = 113,632,541,518,014,544
  5. Step 5: Solve for x
    x = 113,632,541,518,014,544/388,272,753.28
  6. Step 6: Final answer
    x = 292,661,642.00

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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.