Home / 123,670,351.10-185,688,578.55-69,191,743.70

Finding the Fourth Proportional to 123,670,351.10, 185,688,578.55 and 69,191,743.70

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Solution

The fourth proportional to 123,670,351.10, 185,688,578.55 and 69,191,743.70 is: 103,890,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670,351.10 : 185,688,578.55 = 69,191,743.70 : x
  2. Step 2: Convert to fraction form
    123,670,351.10/185,688,578.55 = 69,191,743.70/x
  3. Step 3: Cross multiply
    123,670,351.10x = 185,688,578.55 × 69,191,743.70
  4. Step 4: Simplify right side
    123,670,351.10x = 12,848,116,535,048,920
  5. Step 5: Solve for x
    x = 12,848,116,535,048,920/123,670,351.10
  6. Step 6: Final answer
    x = 103,890,030.40

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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.