Home / 12,249,341.40-18,374,012.10-7,994,314.20

Finding the Fourth Proportional to 12,249,341.40, 18,374,012.10 and 7,994,314.20

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Solution

The fourth proportional to 12,249,341.40, 18,374,012.10 and 7,994,314.20 is: 11,991,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249,341.40 : 18,374,012.10 = 7,994,314.20 : x
  2. Step 2: Convert to fraction form
    12,249,341.40/18,374,012.10 = 7,994,314.20/x
  3. Step 3: Cross multiply
    12,249,341.40x = 18,374,012.10 × 7,994,314.20
  4. Step 4: Simplify right side
    12,249,341.40x = 146,887,625,842,001.84
  5. Step 5: Solve for x
    x = 146,887,625,842,001.84/12,249,341.40
  6. Step 6: Final answer
    x = 11,991,471.30

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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.