Home / 139,968,000.68-209,952,001.01-103,688,295.08

Finding the Fourth Proportional to 139,968,000.68, 209,952,001.01 and 103,688,295.08

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Solution

The fourth proportional to 139,968,000.68, 209,952,001.01 and 103,688,295.08 is: 155,532,442.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,000.68 : 209,952,001.01 = 103,688,295.08 : x
  2. Step 2: Convert to fraction form
    139,968,000.68/209,952,001.01 = 103,688,295.08/x
  3. Step 3: Cross multiply
    139,968,000.68x = 209,952,001.01 × 103,688,295.08
  4. Step 4: Simplify right side
    139,968,000.68x = 21,769,565,032,570,800
  5. Step 5: Solve for x
    x = 21,769,565,032,570,800/139,968,000.68
  6. Step 6: Final answer
    x = 155,532,442.61

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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.