Home / 315,156,998.90-472,752,739.61-130,943,100.65

Finding the Fourth Proportional to 315,156,998.90, 472,752,739.61 and 130,943,100.65

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Solution

The fourth proportional to 315,156,998.90, 472,752,739.61 and 130,943,100.65 is: 196,421,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,156,998.90 : 472,752,739.61 = 130,943,100.65 : x
  2. Step 2: Convert to fraction form
    315,156,998.90/472,752,739.61 = 130,943,100.65/x
  3. Step 3: Cross multiply
    315,156,998.90x = 472,752,739.61 × 130,943,100.65
  4. Step 4: Simplify right side
    315,156,998.90x = 61,903,709,562,788,024
  5. Step 5: Solve for x
    x = 61,903,709,562,788,024/315,156,998.90
  6. Step 6: Final answer
    x = 196,421,814.46

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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.