Home / 1,235,611,989.60-1,853,389,645.20-622,031,445.60

Finding the Fourth Proportional to 1,235,611,989.60, 1,853,389,645.20 and 622,031,445.60

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Solution

The fourth proportional to 1,235,611,989.60, 1,853,389,645.20 and 622,031,445.60 is: 933,032,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,611,989.60 : 1,853,389,645.20 = 622,031,445.60 : x
  2. Step 2: Convert to fraction form
    1,235,611,989.60/1,853,389,645.20 = 622,031,445.60/x
  3. Step 3: Cross multiply
    1,235,611,989.60x = 1,853,389,645.20 × 622,031,445.60
  4. Step 4: Simplify right side
    1,235,611,989.60x = 1,152,866,640,263,827,200
  5. Step 5: Solve for x
    x = 1,152,866,640,263,827,200/1,235,611,989.60
  6. Step 6: Final answer
    x = 933,032,901.89

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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.