Home / 517,845,243.40-714,636,970.48-282,911,120.52

Finding the Fourth Proportional to 517,845,243.40, 714,636,970.48 and 282,911,120.52

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Solution

The fourth proportional to 517,845,243.40, 714,636,970.48 and 282,911,120.52 is: 390,423,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,845,243.40 : 714,636,970.48 = 282,911,120.52 : x
  2. Step 2: Convert to fraction form
    517,845,243.40/714,636,970.48 = 282,911,120.52/x
  3. Step 3: Cross multiply
    517,845,243.40x = 714,636,970.48 × 282,911,120.52
  4. Step 4: Simplify right side
    517,845,243.40x = 202,178,746,083,514,944
  5. Step 5: Solve for x
    x = 202,178,746,083,514,944/517,845,243.40
  6. Step 6: Final answer
    x = 390,423,101.61

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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.