Home / 38,128,653.67-52,617,916.04-20,724,988.11

Finding the Fourth Proportional to 38,128,653.67, 52,617,916.04 and 20,724,988.11

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Solution

The fourth proportional to 38,128,653.67, 52,617,916.04 and 20,724,988.11 is: 28,600,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128,653.67 : 52,617,916.04 = 20,724,988.11 : x
  2. Step 2: Convert to fraction form
    38,128,653.67/52,617,916.04 = 20,724,988.11/x
  3. Step 3: Cross multiply
    38,128,653.67x = 52,617,916.04 × 20,724,988.11
  4. Step 4: Simplify right side
    38,128,653.67x = 1,090,505,684,301,978.25
  5. Step 5: Solve for x
    x = 1,090,505,684,301,978.25/38,128,653.67
  6. Step 6: Final answer
    x = 28,600,686.87

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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.