Home / 28,543,663.13-39,390,275.37-15,490,918.94

Finding the Fourth Proportional to 28,543,663.13, 39,390,275.37 and 15,490,918.94

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Solution

The fourth proportional to 28,543,663.13, 39,390,275.37 and 15,490,918.94 is: 21,377,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,663.13 : 39,390,275.37 = 15,490,918.94 : x
  2. Step 2: Convert to fraction form
    28,543,663.13/39,390,275.37 = 15,490,918.94/x
  3. Step 3: Cross multiply
    28,543,663.13x = 39,390,275.37 × 15,490,918.94
  4. Step 4: Simplify right side
    28,543,663.13x = 610,191,562,583,997.12
  5. Step 5: Solve for x
    x = 610,191,562,583,997.12/28,543,663.13
  6. Step 6: Final answer
    x = 21,377,479.12

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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.