Home / 120,473,341.20-180,710,011.80-39,683,811.60

Finding the Fourth Proportional to 120,473,341.20, 180,710,011.80 and 39,683,811.60

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Solution

The fourth proportional to 120,473,341.20, 180,710,011.80 and 39,683,811.60 is: 59,525,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,473,341.20 : 180,710,011.80 = 39,683,811.60 : x
  2. Step 2: Convert to fraction form
    120,473,341.20/180,710,011.80 = 39,683,811.60/x
  3. Step 3: Cross multiply
    120,473,341.20x = 180,710,011.80 × 39,683,811.60
  4. Step 4: Simplify right side
    120,473,341.20x = 7,171,262,062,504,978
  5. Step 5: Solve for x
    x = 7,171,262,062,504,978/120,473,341.20
  6. Step 6: Final answer
    x = 59,525,717.40

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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.