Home / 120,102,912.09-180,170,479.53-42,361,541.07

Finding the Fourth Proportional to 120,102,912.09, 180,170,479.53 and 42,361,541.07

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Solution

The fourth proportional to 120,102,912.09, 180,170,479.53 and 42,361,541.07 is: 63,547,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,102,912.09 : 180,170,479.53 = 42,361,541.07 : x
  2. Step 2: Convert to fraction form
    120,102,912.09/180,170,479.53 = 42,361,541.07/x
  3. Step 3: Cross multiply
    120,102,912.09x = 180,170,479.53 × 42,361,541.07
  4. Step 4: Simplify right side
    120,102,912.09x = 7,632,299,168,211,689
  5. Step 5: Solve for x
    x = 7,632,299,168,211,689/120,102,912.09
  6. Step 6: Final answer
    x = 63,547,994.26

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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.