Home / 210,364,005-315,531,042.25-64,782,386.07

Finding the Fourth Proportional to 210,364,005, 315,531,042.25 and 64,782,386.07

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Solution

The fourth proportional to 210,364,005, 315,531,042.25 and 64,782,386.07 is: 97,168,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364,005 : 315,531,042.25 = 64,782,386.07 : x
  2. Step 2: Convert to fraction form
    210,364,005/315,531,042.25 = 64,782,386.07/x
  3. Step 3: Cross multiply
    210,364,005x = 315,531,042.25 × 64,782,386.07
  4. Step 4: Simplify right side
    210,364,005x = 20,440,853,796,108,980
  5. Step 5: Solve for x
    x = 20,440,853,796,108,980/210,364,005
  6. Step 6: Final answer
    x = 97,168,970.50

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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.