Home / 111,563,999.70-167,345,999.55-86,054,831.70

Finding the Fourth Proportional to 111,563,999.70, 167,345,999.55 and 86,054,831.70

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Solution

The fourth proportional to 111,563,999.70, 167,345,999.55 and 86,054,831.70 is: 129,082,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,563,999.70 : 167,345,999.55 = 86,054,831.70 : x
  2. Step 2: Convert to fraction form
    111,563,999.70/167,345,999.55 = 86,054,831.70/x
  3. Step 3: Cross multiply
    111,563,999.70x = 167,345,999.55 × 86,054,831.70
  4. Step 4: Simplify right side
    111,563,999.70x = 14,400,931,826,943,528
  5. Step 5: Solve for x
    x = 14,400,931,826,943,528/111,563,999.70
  6. Step 6: Final answer
    x = 129,082,247.55

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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.