Home / 755,326,959.66-1,042,383,373.20-420,799,292.64

Finding the Fourth Proportional to 755,326,959.66, 1,042,383,373.20 and 420,799,292.64

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Solution

The fourth proportional to 755,326,959.66, 1,042,383,373.20 and 420,799,292.64 is: 580,720,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,326,959.66 : 1,042,383,373.20 = 420,799,292.64 : x
  2. Step 2: Convert to fraction form
    755,326,959.66/1,042,383,373.20 = 420,799,292.64/x
  3. Step 3: Cross multiply
    755,326,959.66x = 1,042,383,373.20 × 420,799,292.64
  4. Step 4: Simplify right side
    755,326,959.66x = 438,634,186,102,257,152
  5. Step 5: Solve for x
    x = 438,634,186,102,257,152/755,326,959.66
  6. Step 6: Final answer
    x = 580,720,945.40

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1.5x scale

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.