Home / 907,984,010.40-1,361,976,015.60-688,445,733.30

Finding the Fourth Proportional to 907,984,010.40, 1,361,976,015.60 and 688,445,733.30

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Solution

The fourth proportional to 907,984,010.40, 1,361,976,015.60 and 688,445,733.30 is: 1,032,668,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,984,010.40 : 1,361,976,015.60 = 688,445,733.30 : x
  2. Step 2: Convert to fraction form
    907,984,010.40/1,361,976,015.60 = 688,445,733.30/x
  3. Step 3: Cross multiply
    907,984,010.40x = 1,361,976,015.60 × 688,445,733.30
  4. Step 4: Simplify right side
    907,984,010.40x = 937,646,576,796,754,048
  5. Step 5: Solve for x
    x = 937,646,576,796,754,048/907,984,010.40
  6. Step 6: Final answer
    x = 1,032,668,599.95

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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.