Home / 121,575,646.80-167,775,746.10-65,822,282.21

Finding the Fourth Proportional to 121,575,646.80, 167,775,746.10 and 65,822,282.21

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Solution

The fourth proportional to 121,575,646.80, 167,775,746.10 and 65,822,282.21 is: 90,835,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,575,646.80 : 167,775,746.10 = 65,822,282.21 : x
  2. Step 2: Convert to fraction form
    121,575,646.80/167,775,746.10 = 65,822,282.21/x
  3. Step 3: Cross multiply
    121,575,646.80x = 167,775,746.10 × 65,822,282.21
  4. Step 4: Simplify right side
    121,575,646.80x = 11,043,382,506,948,628
  5. Step 5: Solve for x
    x = 11,043,382,506,948,628/121,575,646.80
  6. Step 6: Final answer
    x = 90,835,482.25

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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.