Home / 1,128,105,517.60-1,688,575,095.60-805,619,245.60

Finding the Fourth Proportional to 1,128,105,517.60, 1,688,575,095.60 and 805,619,245.60

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Solution

The fourth proportional to 1,128,105,517.60, 1,688,575,095.60 and 805,619,245.60 is: 1,205,869,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,105,517.60 : 1,688,575,095.60 = 805,619,245.60 : x
  2. Step 2: Convert to fraction form
    1,128,105,517.60/1,688,575,095.60 = 805,619,245.60/x
  3. Step 3: Cross multiply
    1,128,105,517.60x = 1,688,575,095.60 × 805,619,245.60
  4. Step 4: Simplify right side
    1,128,105,517.60x = 1,360,348,594,656,219,904
  5. Step 5: Solve for x
    x = 1,360,348,594,656,219,904/1,128,105,517.60
  6. Step 6: Final answer
    x = 1,205,869,994.81

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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.