Home / 893,470,489.20-1,340,205,733.80-663,887,977.20

Finding the Fourth Proportional to 893,470,489.20, 1,340,205,733.80 and 663,887,977.20

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Solution

The fourth proportional to 893,470,489.20, 1,340,205,733.80 and 663,887,977.20 is: 995,831,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,470,489.20 : 1,340,205,733.80 = 663,887,977.20 : x
  2. Step 2: Convert to fraction form
    893,470,489.20/1,340,205,733.80 = 663,887,977.20/x
  3. Step 3: Cross multiply
    893,470,489.20x = 1,340,205,733.80 × 663,887,977.20
  4. Step 4: Simplify right side
    893,470,489.20x = 889,746,473,644,323,712
  5. Step 5: Solve for x
    x = 889,746,473,644,323,712/893,470,489.20
  6. Step 6: Final answer
    x = 995,831,965.80

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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.