Home / 84,769,246.80-127,153,870.20-30,243,400.20

Finding the Fourth Proportional to 84,769,246.80, 127,153,870.20 and 30,243,400.20

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Solution

The fourth proportional to 84,769,246.80, 127,153,870.20 and 30,243,400.20 is: 45,365,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,769,246.80 : 127,153,870.20 = 30,243,400.20 : x
  2. Step 2: Convert to fraction form
    84,769,246.80/127,153,870.20 = 30,243,400.20/x
  3. Step 3: Cross multiply
    84,769,246.80x = 127,153,870.20 × 30,243,400.20
  4. Step 4: Simplify right side
    84,769,246.80x = 3,845,565,383,437,454
  5. Step 5: Solve for x
    x = 3,845,565,383,437,454/84,769,246.80
  6. Step 6: Final answer
    x = 45,365,100.30

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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.