Home / 821,730,381.02-1,133,866,853.64-499,694,062.40

Finding the Fourth Proportional to 821,730,381.02, 1,133,866,853.64 and 499,694,062.40

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Solution

The fourth proportional to 821,730,381.02, 1,133,866,853.64 and 499,694,062.40 is: 689,504,182.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,730,381.02 : 1,133,866,853.64 = 499,694,062.40 : x
  2. Step 2: Convert to fraction form
    821,730,381.02/1,133,866,853.64 = 499,694,062.40/x
  3. Step 3: Cross multiply
    821,730,381.02x = 1,133,866,853.64 × 499,694,062.40
  4. Step 4: Simplify right side
    821,730,381.02x = 566,586,534,316,077,824
  5. Step 5: Solve for x
    x = 566,586,534,316,077,824/821,730,381.02
  6. Step 6: Final answer
    x = 689,504,182.15

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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.