Home / 239,507,599.20-330,518,561.72-139,045,358.22

Finding the Fourth Proportional to 239,507,599.20, 330,518,561.72 and 139,045,358.22

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Solution

The fourth proportional to 239,507,599.20, 330,518,561.72 and 139,045,358.22 is: 191,881,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,507,599.20 : 330,518,561.72 = 139,045,358.22 : x
  2. Step 2: Convert to fraction form
    239,507,599.20/330,518,561.72 = 139,045,358.22/x
  3. Step 3: Cross multiply
    239,507,599.20x = 330,518,561.72 × 139,045,358.22
  4. Step 4: Simplify right side
    239,507,599.20x = 45,957,071,812,021,352
  5. Step 5: Solve for x
    x = 45,957,071,812,021,352/239,507,599.20
  6. Step 6: Final answer
    x = 191,881,476.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.