Home / 1,165,960,885.40-1,749,031,745.70-389,609,322.20

Finding the Fourth Proportional to 1,165,960,885.40, 1,749,031,745.70 and 389,609,322.20

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Solution

The fourth proportional to 1,165,960,885.40, 1,749,031,745.70 and 389,609,322.20 is: 584,444,196.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,960,885.40 : 1,749,031,745.70 = 389,609,322.20 : x
  2. Step 2: Convert to fraction form
    1,165,960,885.40/1,749,031,745.70 = 389,609,322.20/x
  3. Step 3: Cross multiply
    1,165,960,885.40x = 1,749,031,745.70 × 389,609,322.20
  4. Step 4: Simplify right side
    1,165,960,885.40x = 681,439,072,948,459,776
  5. Step 5: Solve for x
    x = 681,439,072,948,459,776/1,165,960,885.40
  6. Step 6: Final answer
    x = 584,444,196.61

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Double scale
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1.5x scale

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.