Home / 210,172,605.12-315,288,993.51-64,618,386.26

Finding the Fourth Proportional to 210,172,605.12, 315,288,993.51 and 64,618,386.26

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Solution

The fourth proportional to 210,172,605.12, 315,288,993.51 and 64,618,386.26 is: 96,936,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,172,605.12 : 315,288,993.51 = 64,618,386.26 : x
  2. Step 2: Convert to fraction form
    210,172,605.12/315,288,993.51 = 64,618,386.26/x
  3. Step 3: Cross multiply
    210,172,605.12x = 315,288,993.51 × 64,618,386.26
  4. Step 4: Simplify right side
    210,172,605.12x = 20,373,465,964,579,368
  5. Step 5: Solve for x
    x = 20,373,465,964,579,368/210,172,605.12
  6. Step 6: Final answer
    x = 96,936,829.39

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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.