Home / 84,672,002.80-127,008,004.20-30,812,316.40

Finding the Fourth Proportional to 84,672,002.80, 127,008,004.20 and 30,812,316.40

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Solution

The fourth proportional to 84,672,002.80, 127,008,004.20 and 30,812,316.40 is: 46,218,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672,002.80 : 127,008,004.20 = 30,812,316.40 : x
  2. Step 2: Convert to fraction form
    84,672,002.80/127,008,004.20 = 30,812,316.40/x
  3. Step 3: Cross multiply
    84,672,002.80x = 127,008,004.20 × 30,812,316.40
  4. Step 4: Simplify right side
    84,672,002.80x = 3,913,410,810,742,929
  5. Step 5: Solve for x
    x = 3,913,410,810,742,929/84,672,002.80
  6. Step 6: Final answer
    x = 46,218,474.60

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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.