Home / 1,421,157,863.10-1,961,066,237.78-786,064,685.95

Finding the Fourth Proportional to 1,421,157,863.10, 1,961,066,237.78 and 786,064,685.95

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Solution

The fourth proportional to 1,421,157,863.10, 1,961,066,237.78 and 786,064,685.95 is: 1,084,696,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,157,863.10 : 1,961,066,237.78 = 786,064,685.95 : x
  2. Step 2: Convert to fraction form
    1,421,157,863.10/1,961,066,237.78 = 786,064,685.95/x
  3. Step 3: Cross multiply
    1,421,157,863.10x = 1,961,066,237.78 × 786,064,685.95
  4. Step 4: Simplify right side
    1,421,157,863.10x = 1,541,524,916,316,598,272
  5. Step 5: Solve for x
    x = 1,541,524,916,316,598,272/1,421,157,863.10
  6. Step 6: Final answer
    x = 1,084,696,469.22

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Double scale
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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.