Home / 140,779,807.70-210,897,329.04-79,181,809.97

Finding the Fourth Proportional to 140,779,807.70, 210,897,329.04 and 79,181,809.97

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Solution

The fourth proportional to 140,779,807.70, 210,897,329.04 and 79,181,809.97 is: 118,619,513.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,779,807.70 : 210,897,329.04 = 79,181,809.97 : x
  2. Step 2: Convert to fraction form
    140,779,807.70/210,897,329.04 = 79,181,809.97/x
  3. Step 3: Cross multiply
    140,779,807.70x = 210,897,329.04 × 79,181,809.97
  4. Step 4: Simplify right side
    140,779,807.70x = 16,699,232,230,171,356
  5. Step 5: Solve for x
    x = 16,699,232,230,171,356/140,779,807.70
  6. Step 6: Final answer
    x = 118,619,513.01

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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.