Home / 278,124,465.20-417,020,809.80-170,496,330.80

Finding the Fourth Proportional to 278,124,465.20, 417,020,809.80 and 170,496,330.80

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Solution

The fourth proportional to 278,124,465.20, 417,020,809.80 and 170,496,330.80 is: 255,642,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,124,465.20 : 417,020,809.80 = 170,496,330.80 : x
  2. Step 2: Convert to fraction form
    278,124,465.20/417,020,809.80 = 170,496,330.80/x
  3. Step 3: Cross multiply
    278,124,465.20x = 417,020,809.80 × 170,496,330.80
  4. Step 4: Simplify right side
    278,124,465.20x = 71,100,517,938,144,688
  5. Step 5: Solve for x
    x = 71,100,517,938,144,688/278,124,465.20
  6. Step 6: Final answer
    x = 255,642,803.26

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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.