Home / 1,421,157,864.60-1,961,066,239.85-786,064,687.44

Finding the Fourth Proportional to 1,421,157,864.60, 1,961,066,239.85 and 786,064,687.44

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Solution

The fourth proportional to 1,421,157,864.60, 1,961,066,239.85 and 786,064,687.44 is: 1,084,696,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,157,864.60 : 1,961,066,239.85 = 786,064,687.44 : x
  2. Step 2: Convert to fraction form
    1,421,157,864.60/1,961,066,239.85 = 786,064,687.44/x
  3. Step 3: Cross multiply
    1,421,157,864.60x = 1,961,066,239.85 × 786,064,687.44
  4. Step 4: Simplify right side
    1,421,157,864.60x = 1,541,524,920,872,896,256
  5. Step 5: Solve for x
    x = 1,541,524,920,872,896,256/1,421,157,864.60
  6. Step 6: Final answer
    x = 1,084,696,471.29

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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.