Home / 121,287,410.40-181,931,115.60-56,717,328.90

Finding the Fourth Proportional to 121,287,410.40, 181,931,115.60 and 56,717,328.90

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Solution

The fourth proportional to 121,287,410.40, 181,931,115.60 and 56,717,328.90 is: 85,075,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,287,410.40 : 181,931,115.60 = 56,717,328.90 : x
  2. Step 2: Convert to fraction form
    121,287,410.40/181,931,115.60 = 56,717,328.90/x
  3. Step 3: Cross multiply
    121,287,410.40x = 181,931,115.60 × 56,717,328.90
  4. Step 4: Simplify right side
    121,287,410.40x = 10,318,646,920,629,120
  5. Step 5: Solve for x
    x = 10,318,646,920,629,120/121,287,410.40
  6. Step 6: Final answer
    x = 85,075,993.35

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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.