Home / 103,029,572,742.57-142,084,885,061.43-66,861,932,991.93

Finding the Fourth Proportional to 103,029,572,742.57, 142,084,885,061.43 and 66,861,932,991.93

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Solution

The fourth proportional to 103,029,572,742.57, 142,084,885,061.43 and 66,861,932,991.93 is: 92,207,215,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,029,572,742.57 : 142,084,885,061.43 = 66,861,932,991.93 : x
  2. Step 2: Convert to fraction form
    103,029,572,742.57/142,084,885,061.43 = 66,861,932,991.93/x
  3. Step 3: Cross multiply
    103,029,572,742.57x = 142,084,885,061.43 × 66,861,932,991.93
  4. Step 4: Simplify right side
    103,029,572,742.57x = 9,500,070,064,143,407,775,744
  5. Step 5: Solve for x
    x = 9,500,070,064,143,407,775,744/103,029,572,742.57
  6. Step 6: Final answer
    x = 92,207,215,960.03

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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.