Home / 145,542,291.40-218,313,437.10-69,014,787.40

Finding the Fourth Proportional to 145,542,291.40, 218,313,437.10 and 69,014,787.40

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Solution

The fourth proportional to 145,542,291.40, 218,313,437.10 and 69,014,787.40 is: 103,522,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,291.40 : 218,313,437.10 = 69,014,787.40 : x
  2. Step 2: Convert to fraction form
    145,542,291.40/218,313,437.10 = 69,014,787.40/x
  3. Step 3: Cross multiply
    145,542,291.40x = 218,313,437.10 × 69,014,787.40
  4. Step 4: Simplify right side
    145,542,291.40x = 15,066,855,448,019,774
  5. Step 5: Solve for x
    x = 15,066,855,448,019,774/145,542,291.40
  6. Step 6: Final answer
    x = 103,522,181.10

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1.5x scale

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.