Home / 239,507,599.45-330,518,562.06-139,045,358.47

Finding the Fourth Proportional to 239,507,599.45, 330,518,562.06 and 139,045,358.47

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Solution

The fourth proportional to 239,507,599.45, 330,518,562.06 and 139,045,358.47 is: 191,881,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,507,599.45 : 330,518,562.06 = 139,045,358.47 : x
  2. Step 2: Convert to fraction form
    239,507,599.45/330,518,562.06 = 139,045,358.47/x
  3. Step 3: Cross multiply
    239,507,599.45x = 330,518,562.06 × 139,045,358.47
  4. Step 4: Simplify right side
    239,507,599.45x = 45,957,071,942,621,640
  5. Step 5: Solve for x
    x = 45,957,071,942,621,640/239,507,599.45
  6. Step 6: Final answer
    x = 191,881,477.03

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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.