Home / 828,927,948.80-1,144,020,878.17-471,782,560.39

Finding the Fourth Proportional to 828,927,948.80, 1,144,020,878.17 and 471,782,560.39

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Solution

The fourth proportional to 828,927,948.80, 1,144,020,878.17 and 471,782,560.39 is: 651,117,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,927,948.80 : 1,144,020,878.17 = 471,782,560.39 : x
  2. Step 2: Convert to fraction form
    828,927,948.80/1,144,020,878.17 = 471,782,560.39/x
  3. Step 3: Cross multiply
    828,927,948.80x = 1,144,020,878.17 × 471,782,560.39
  4. Step 4: Simplify right side
    828,927,948.80x = 539,729,099,038,642,240
  5. Step 5: Solve for x
    x = 539,729,099,038,642,240/828,927,948.80
  6. Step 6: Final answer
    x = 651,117,023.88

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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.