Home / 139,968,143.15-209,952,214.73-89,075,778.35

Finding the Fourth Proportional to 139,968,143.15, 209,952,214.73 and 89,075,778.35

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Solution

The fourth proportional to 139,968,143.15, 209,952,214.73 and 89,075,778.35 is: 133,613,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,143.15 : 209,952,214.73 = 89,075,778.35 : x
  2. Step 2: Convert to fraction form
    139,968,143.15/209,952,214.73 = 89,075,778.35/x
  3. Step 3: Cross multiply
    139,968,143.15x = 209,952,214.73 × 89,075,778.35
  4. Step 4: Simplify right side
    139,968,143.15x = 18,701,656,943,381,084
  5. Step 5: Solve for x
    x = 18,701,656,943,381,084/139,968,143.15
  6. Step 6: Final answer
    x = 133,613,667.53

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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.