Home / 162,168,633.80-223,792,643.95-87,829,197.78

Finding the Fourth Proportional to 162,168,633.80, 223,792,643.95 and 87,829,197.78

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Solution

The fourth proportional to 162,168,633.80, 223,792,643.95 and 87,829,197.78 is: 121,204,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,168,633.80 : 223,792,643.95 = 87,829,197.78 : x
  2. Step 2: Convert to fraction form
    162,168,633.80/223,792,643.95 = 87,829,197.78/x
  3. Step 3: Cross multiply
    162,168,633.80x = 223,792,643.95 × 87,829,197.78
  4. Step 4: Simplify right side
    162,168,633.80x = 19,655,528,387,813,320
  5. Step 5: Solve for x
    x = 19,655,528,387,813,320/162,168,633.80
  6. Step 6: Final answer
    x = 121,204,254.65

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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.