Home / 30,342,669.90-45,514,004.85-20,139,002.70

Finding the Fourth Proportional to 30,342,669.90, 45,514,004.85 and 20,139,002.70

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Solution

The fourth proportional to 30,342,669.90, 45,514,004.85 and 20,139,002.70 is: 30,208,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342,669.90 : 45,514,004.85 = 20,139,002.70 : x
  2. Step 2: Convert to fraction form
    30,342,669.90/45,514,004.85 = 20,139,002.70/x
  3. Step 3: Cross multiply
    30,342,669.90x = 45,514,004.85 × 20,139,002.70
  4. Step 4: Simplify right side
    30,342,669.90x = 916,606,666,561,963.12
  5. Step 5: Solve for x
    x = 916,606,666,561,963.12/30,342,669.90
  6. Step 6: Final answer
    x = 30,208,504.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.