Home / 139,955,412.60-209,779,154.10-49,032,199.80

Finding the Fourth Proportional to 139,955,412.60, 209,779,154.10 and 49,032,199.80

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Solution

The fourth proportional to 139,955,412.60, 209,779,154.10 and 49,032,199.80 is: 73,494,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,955,412.60 : 209,779,154.10 = 49,032,199.80 : x
  2. Step 2: Convert to fraction form
    139,955,412.60/209,779,154.10 = 49,032,199.80/x
  3. Step 3: Cross multiply
    139,955,412.60x = 209,779,154.10 × 49,032,199.80
  4. Step 4: Simplify right side
    139,955,412.60x = 10,285,933,397,706,188
  5. Step 5: Solve for x
    x = 10,285,933,397,706,188/139,955,412.60
  6. Step 6: Final answer
    x = 73,494,359.43

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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.