Home / 288,586,435.75-398,238,608.04-156,424,594.69

Finding the Fourth Proportional to 288,586,435.75, 398,238,608.04 and 156,424,594.69

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Solution

The fourth proportional to 288,586,435.75, 398,238,608.04 and 156,424,594.69 is: 215,860,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,435.75 : 398,238,608.04 = 156,424,594.69 : x
  2. Step 2: Convert to fraction form
    288,586,435.75/398,238,608.04 = 156,424,594.69/x
  3. Step 3: Cross multiply
    288,586,435.75x = 398,238,608.04 × 156,424,594.69
  4. Step 4: Simplify right side
    288,586,435.75x = 62,294,312,852,566,776
  5. Step 5: Solve for x
    x = 62,294,312,852,566,776/288,586,435.75
  6. Step 6: Final answer
    x = 215,860,155.35

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1.5x scale

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.