Home / 1,123,572,869.08-1,550,468,192.70-628,439,918.20

Finding the Fourth Proportional to 1,123,572,869.08, 1,550,468,192.70 and 628,439,918.20

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Solution

The fourth proportional to 1,123,572,869.08, 1,550,468,192.70 and 628,439,918.20 is: 867,212,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,572,869.08 : 1,550,468,192.70 = 628,439,918.20 : x
  2. Step 2: Convert to fraction form
    1,123,572,869.08/1,550,468,192.70 = 628,439,918.20/x
  3. Step 3: Cross multiply
    1,123,572,869.08x = 1,550,468,192.70 × 628,439,918.20
  4. Step 4: Simplify right side
    1,123,572,869.08x = 974,376,104,192,089,984
  5. Step 5: Solve for x
    x = 974,376,104,192,089,984/1,123,572,869.08
  6. Step 6: Final answer
    x = 867,212,204.04

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.