Home / 154,646,710-213,406,997.04-85,031,603.44

Finding the Fourth Proportional to 154,646,710, 213,406,997.04 and 85,031,603.44

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Solution

The fourth proportional to 154,646,710, 213,406,997.04 and 85,031,603.44 is: 117,340,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,646,710 : 213,406,997.04 = 85,031,603.44 : x
  2. Step 2: Convert to fraction form
    154,646,710/213,406,997.04 = 85,031,603.44/x
  3. Step 3: Cross multiply
    154,646,710x = 213,406,997.04 × 85,031,603.44
  4. Step 4: Simplify right side
    154,646,710x = 18,146,339,143,626,532
  5. Step 5: Solve for x
    x = 18,146,339,143,626,532/154,646,710
  6. Step 6: Final answer
    x = 117,340,609.08

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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.