Home / 143,989,899.40-215,984,849.10-115,292,085.40

Finding the Fourth Proportional to 143,989,899.40, 215,984,849.10 and 115,292,085.40

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Solution

The fourth proportional to 143,989,899.40, 215,984,849.10 and 115,292,085.40 is: 172,938,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,989,899.40 : 215,984,849.10 = 115,292,085.40 : x
  2. Step 2: Convert to fraction form
    143,989,899.40/215,984,849.10 = 115,292,085.40/x
  3. Step 3: Cross multiply
    143,989,899.40x = 215,984,849.10 × 115,292,085.40
  4. Step 4: Simplify right side
    143,989,899.40x = 24,901,343,667,543,312
  5. Step 5: Solve for x
    x = 24,901,343,667,543,312/143,989,899.40
  6. Step 6: Final answer
    x = 172,938,128.10

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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.