Home / 842,859,607.80-1,264,289,411.70-358,122,430.20

Finding the Fourth Proportional to 842,859,607.80, 1,264,289,411.70 and 358,122,430.20

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Solution

The fourth proportional to 842,859,607.80, 1,264,289,411.70 and 358,122,430.20 is: 537,183,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,859,607.80 : 1,264,289,411.70 = 358,122,430.20 : x
  2. Step 2: Convert to fraction form
    842,859,607.80/1,264,289,411.70 = 358,122,430.20/x
  3. Step 3: Cross multiply
    842,859,607.80x = 1,264,289,411.70 × 358,122,430.20
  4. Step 4: Simplify right side
    842,859,607.80x = 452,770,396,594,132,288
  5. Step 5: Solve for x
    x = 452,770,396,594,132,288/842,859,607.80
  6. Step 6: Final answer
    x = 537,183,645.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.