Home / 121,277,312.40-181,915,968.60-48,458,085.60

Finding the Fourth Proportional to 121,277,312.40, 181,915,968.60 and 48,458,085.60

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Solution

The fourth proportional to 121,277,312.40, 181,915,968.60 and 48,458,085.60 is: 72,687,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277,312.40 : 181,915,968.60 = 48,458,085.60 : x
  2. Step 2: Convert to fraction form
    121,277,312.40/181,915,968.60 = 48,458,085.60/x
  3. Step 3: Cross multiply
    121,277,312.40x = 181,915,968.60 × 48,458,085.60
  4. Step 4: Simplify right side
    121,277,312.40x = 8,815,299,578,425,712
  5. Step 5: Solve for x
    x = 8,815,299,578,425,712/121,277,312.40
  6. Step 6: Final answer
    x = 72,687,128.40

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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.