Home / 188,290,428.90-282,435,643.35-67,078,140.90

Finding the Fourth Proportional to 188,290,428.90, 282,435,643.35 and 67,078,140.90

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Solution

The fourth proportional to 188,290,428.90, 282,435,643.35 and 67,078,140.90 is: 100,617,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290,428.90 : 282,435,643.35 = 67,078,140.90 : x
  2. Step 2: Convert to fraction form
    188,290,428.90/282,435,643.35 = 67,078,140.90/x
  3. Step 3: Cross multiply
    188,290,428.90x = 282,435,643.35 × 67,078,140.90
  4. Step 4: Simplify right side
    188,290,428.90x = 18,945,257,879,813,448
  5. Step 5: Solve for x
    x = 18,945,257,879,813,448/188,290,428.90
  6. Step 6: Final answer
    x = 100,617,211.35

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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.