Home / 1,780,958,205.08-2,457,725,214.29-988,004,204.72

Finding the Fourth Proportional to 1,780,958,205.08, 2,457,725,214.29 and 988,004,204.72

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Solution

The fourth proportional to 1,780,958,205.08, 2,457,725,214.29 and 988,004,204.72 is: 1,363,447,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,958,205.08 : 2,457,725,214.29 = 988,004,204.72 : x
  2. Step 2: Convert to fraction form
    1,780,958,205.08/2,457,725,214.29 = 988,004,204.72/x
  3. Step 3: Cross multiply
    1,780,958,205.08x = 2,457,725,214.29 × 988,004,204.72
  4. Step 4: Simplify right side
    1,780,958,205.08x = 2,428,242,845,747,654,144
  5. Step 5: Solve for x
    x = 2,428,242,845,747,654,144/1,780,958,205.08
  6. Step 6: Final answer
    x = 1,363,447,406.47

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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.