Home / 85,202,362.90-127,803,544.35-74,679,831.10

Finding the Fourth Proportional to 85,202,362.90, 127,803,544.35 and 74,679,831.10

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Solution

The fourth proportional to 85,202,362.90, 127,803,544.35 and 74,679,831.10 is: 112,019,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,362.90 : 127,803,544.35 = 74,679,831.10 : x
  2. Step 2: Convert to fraction form
    85,202,362.90/127,803,544.35 = 74,679,831.10/x
  3. Step 3: Cross multiply
    85,202,362.90x = 127,803,544.35 × 74,679,831.10
  4. Step 4: Simplify right side
    85,202,362.90x = 9,544,347,106,039,358
  5. Step 5: Solve for x
    x = 9,544,347,106,039,358/85,202,362.90
  6. Step 6: Final answer
    x = 112,019,746.65

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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.