Home / 203,818,482.40-281,292,740.40-121,312,530.40

Finding the Fourth Proportional to 203,818,482.40, 281,292,740.40 and 121,312,530.40

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Solution

The fourth proportional to 203,818,482.40, 281,292,740.40 and 121,312,530.40 is: 167,425,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,818,482.40 : 281,292,740.40 = 121,312,530.40 : x
  2. Step 2: Convert to fraction form
    203,818,482.40/281,292,740.40 = 121,312,530.40/x
  3. Step 3: Cross multiply
    203,818,482.40x = 281,292,740.40 × 121,312,530.40
  4. Step 4: Simplify right side
    203,818,482.40x = 34,124,334,121,074,308
  5. Step 5: Solve for x
    x = 34,124,334,121,074,308/203,818,482.40
  6. Step 6: Final answer
    x = 167,425,121.21

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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.