Home / 1,121,238,093.70-1,681,857,140.55-538,831,901.80

Finding the Fourth Proportional to 1,121,238,093.70, 1,681,857,140.55 and 538,831,901.80

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Solution

The fourth proportional to 1,121,238,093.70, 1,681,857,140.55 and 538,831,901.80 is: 808,247,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,238,093.70 : 1,681,857,140.55 = 538,831,901.80 : x
  2. Step 2: Convert to fraction form
    1,121,238,093.70/1,681,857,140.55 = 538,831,901.80/x
  3. Step 3: Cross multiply
    1,121,238,093.70x = 1,681,857,140.55 × 538,831,901.80
  4. Step 4: Simplify right side
    1,121,238,093.70x = 906,238,281,598,466,304
  5. Step 5: Solve for x
    x = 906,238,281,598,466,304/1,121,238,093.70
  6. Step 6: Final answer
    x = 808,247,852.70

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Double scale
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Similar ratio
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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.