Home / 210,346,215.90-315,535,610.52-70,287,157.41

Finding the Fourth Proportional to 210,346,215.90, 315,535,610.52 and 70,287,157.41

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Solution

The fourth proportional to 210,346,215.90, 315,535,610.52 and 70,287,157.41 is: 105,436,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,346,215.90 : 315,535,610.52 = 70,287,157.41 : x
  2. Step 2: Convert to fraction form
    210,346,215.90/315,535,610.52 = 70,287,157.41/x
  3. Step 3: Cross multiply
    210,346,215.90x = 315,535,610.52 × 70,287,157.41
  4. Step 4: Simplify right side
    210,346,215.90x = 22,178,101,125,079,688
  5. Step 5: Solve for x
    x = 22,178,101,125,079,688/210,346,215.90
  6. Step 6: Final answer
    x = 105,436,178.30

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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.