Home / 210,364,006.25-315,531,044.12-64,782,387.32

Finding the Fourth Proportional to 210,364,006.25, 315,531,044.12 and 64,782,387.32

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Solution

The fourth proportional to 210,364,006.25, 315,531,044.12 and 64,782,387.32 is: 97,168,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364,006.25 : 315,531,044.12 = 64,782,387.32 : x
  2. Step 2: Convert to fraction form
    210,364,006.25/315,531,044.12 = 64,782,387.32/x
  3. Step 3: Cross multiply
    210,364,006.25x = 315,531,044.12 × 64,782,387.32
  4. Step 4: Simplify right side
    210,364,006.25x = 20,440,854,310,250,148
  5. Step 5: Solve for x
    x = 20,440,854,310,250,148/210,364,006.25
  6. Step 6: Final answer
    x = 97,168,972.37

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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.