Home / 1,345,578,031.40-2,018,367,047.10-1,327,438,178.60

Finding the Fourth Proportional to 1,345,578,031.40, 2,018,367,047.10 and 1,327,438,178.60

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Solution

The fourth proportional to 1,345,578,031.40, 2,018,367,047.10 and 1,327,438,178.60 is: 1,991,157,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,578,031.40 : 2,018,367,047.10 = 1,327,438,178.60 : x
  2. Step 2: Convert to fraction form
    1,345,578,031.40/2,018,367,047.10 = 1,327,438,178.60/x
  3. Step 3: Cross multiply
    1,345,578,031.40x = 2,018,367,047.10 × 1,327,438,178.60
  4. Step 4: Simplify right side
    1,345,578,031.40x = 2,679,257,476,748,684,288
  5. Step 5: Solve for x
    x = 2,679,257,476,748,684,288/1,345,578,031.40
  6. Step 6: Final answer
    x = 1,991,157,267.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.