Home / 30,995,386.96-42,755,821.64-19,372,779.28

Finding the Fourth Proportional to 30,995,386.96, 42,755,821.64 and 19,372,779.28

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Solution

The fourth proportional to 30,995,386.96, 42,755,821.64 and 19,372,779.28 is: 26,723,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,995,386.96 : 42,755,821.64 = 19,372,779.28 : x
  2. Step 2: Convert to fraction form
    30,995,386.96/42,755,821.64 = 19,372,779.28/x
  3. Step 3: Cross multiply
    30,995,386.96x = 42,755,821.64 × 19,372,779.28
  4. Step 4: Simplify right side
    30,995,386.96x = 828,299,095,566,767.62
  5. Step 5: Solve for x
    x = 828,299,095,566,767.62/30,995,386.96
  6. Step 6: Final answer
    x = 26,723,302.30

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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.