Home / 12,776,420.40-19,164,630.60-8,241,457.20

Finding the Fourth Proportional to 12,776,420.40, 19,164,630.60 and 8,241,457.20

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Solution

The fourth proportional to 12,776,420.40, 19,164,630.60 and 8,241,457.20 is: 12,362,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,420.40 : 19,164,630.60 = 8,241,457.20 : x
  2. Step 2: Convert to fraction form
    12,776,420.40/19,164,630.60 = 8,241,457.20/x
  3. Step 3: Cross multiply
    12,776,420.40x = 19,164,630.60 × 8,241,457.20
  4. Step 4: Simplify right side
    12,776,420.40x = 157,944,482,843,710.34
  5. Step 5: Solve for x
    x = 157,944,482,843,710.34/12,776,420.40
  6. Step 6: Final answer
    x = 12,362,185.80

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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.