Home / 210,847,001.08-290,764,448.10-164,420,315.32

Finding the Fourth Proportional to 210,847,001.08, 290,764,448.10 and 164,420,315.32

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Solution

The fourth proportional to 210,847,001.08, 290,764,448.10 and 164,420,315.32 is: 226,740,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,847,001.08 : 290,764,448.10 = 164,420,315.32 : x
  2. Step 2: Convert to fraction form
    210,847,001.08/290,764,448.10 = 164,420,315.32/x
  3. Step 3: Cross multiply
    210,847,001.08x = 290,764,448.10 × 164,420,315.32
  4. Step 4: Simplify right side
    210,847,001.08x = 47,807,582,240,447,776
  5. Step 5: Solve for x
    x = 47,807,582,240,447,776/210,847,001.08
  6. Step 6: Final answer
    x = 226,740,631.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.