Home / 912,646,462.32-1,368,872,646.44-257,581,292.40

Finding the Fourth Proportional to 912,646,462.32, 1,368,872,646.44 and 257,581,292.40

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Solution

The fourth proportional to 912,646,462.32, 1,368,872,646.44 and 257,581,292.40 is: 386,344,548.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,646,462.32 : 1,368,872,646.44 = 257,581,292.40 : x
  2. Step 2: Convert to fraction form
    912,646,462.32/1,368,872,646.44 = 257,581,292.40/x
  3. Step 3: Cross multiply
    912,646,462.32x = 1,368,872,646.44 × 257,581,292.40
  4. Step 4: Simplify right side
    912,646,462.32x = 352,595,985,401,023,488
  5. Step 5: Solve for x
    x = 352,595,985,401,023,488/912,646,462.32
  6. Step 6: Final answer
    x = 386,344,548.47

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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.