Home / 12,087,923.40-18,145,881.90-7,301,017.80

Finding the Fourth Proportional to 12,087,923.40, 18,145,881.90 and 7,301,017.80

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Solution

The fourth proportional to 12,087,923.40, 18,145,881.90 and 7,301,017.80 is: 10,959,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,923.40 : 18,145,881.90 = 7,301,017.80 : x
  2. Step 2: Convert to fraction form
    12,087,923.40/18,145,881.90 = 7,301,017.80/x
  3. Step 3: Cross multiply
    12,087,923.40x = 18,145,881.90 × 7,301,017.80
  4. Step 4: Simplify right side
    12,087,923.40x = 132,483,406,748,597.81
  5. Step 5: Solve for x
    x = 132,483,406,748,597.81/12,087,923.40
  6. Step 6: Final answer
    x = 10,959,980.67

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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.