Home / 485,935,456.10-670,609,959.57-274,249,681.20

Finding the Fourth Proportional to 485,935,456.10, 670,609,959.57 and 274,249,681.20

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Solution

The fourth proportional to 485,935,456.10, 670,609,959.57 and 274,249,681.20 is: 378,475,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,935,456.10 : 670,609,959.57 = 274,249,681.20 : x
  2. Step 2: Convert to fraction form
    485,935,456.10/670,609,959.57 = 274,249,681.20/x
  3. Step 3: Cross multiply
    485,935,456.10x = 670,609,959.57 × 274,249,681.20
  4. Step 4: Simplify right side
    485,935,456.10x = 183,914,567,621,617,408
  5. Step 5: Solve for x
    x = 183,914,567,621,617,408/485,935,456.10
  6. Step 6: Final answer
    x = 378,475,300.20

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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.