Home / 1,345,613,671.80-2,018,798,421.30-655,543,438.20

Finding the Fourth Proportional to 1,345,613,671.80, 2,018,798,421.30 and 655,543,438.20

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Solution

The fourth proportional to 1,345,613,671.80, 2,018,798,421.30 and 655,543,438.20 is: 983,499,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,613,671.80 : 2,018,798,421.30 = 655,543,438.20 : x
  2. Step 2: Convert to fraction form
    1,345,613,671.80/2,018,798,421.30 = 655,543,438.20/x
  3. Step 3: Cross multiply
    1,345,613,671.80x = 2,018,798,421.30 × 655,543,438.20
  4. Step 4: Simplify right side
    1,345,613,671.80x = 1,323,410,058,131,734,272
  5. Step 5: Solve for x
    x = 1,323,410,058,131,734,272/1,345,613,671.80
  6. Step 6: Final answer
    x = 983,499,265.70

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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.