Home / 154,646,708-213,406,994.28-85,031,601.44

Finding the Fourth Proportional to 154,646,708, 213,406,994.28 and 85,031,601.44

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Solution

The fourth proportional to 154,646,708, 213,406,994.28 and 85,031,601.44 is: 117,340,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,646,708 : 213,406,994.28 = 85,031,601.44 : x
  2. Step 2: Convert to fraction form
    154,646,708/213,406,994.28 = 85,031,601.44/x
  3. Step 3: Cross multiply
    154,646,708x = 213,406,994.28 × 85,031,601.44
  4. Step 4: Simplify right side
    154,646,708x = 18,146,338,482,125,320
  5. Step 5: Solve for x
    x = 18,146,338,482,125,320/154,646,708
  6. Step 6: Final answer
    x = 117,340,606.32

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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.