Home / 38,688,127.64-53,389,615.56-21,284,099.36

Finding the Fourth Proportional to 38,688,127.64, 53,389,615.56 and 21,284,099.36

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Solution

The fourth proportional to 38,688,127.64, 53,389,615.56 and 21,284,099.36 is: 29,372,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,688,127.64 : 53,389,615.56 = 21,284,099.36 : x
  2. Step 2: Convert to fraction form
    38,688,127.64/53,389,615.56 = 21,284,099.36/x
  3. Step 3: Cross multiply
    38,688,127.64x = 53,389,615.56 × 21,284,099.36
  4. Step 4: Simplify right side
    38,688,127.64x = 1,136,349,882,371,242
  5. Step 5: Solve for x
    x = 1,136,349,882,371,242/38,688,127.64
  6. Step 6: Final answer
    x = 29,372,056.80

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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.