Home / 127,879,345.20-191,819,017.80-47,089,815.60

Finding the Fourth Proportional to 127,879,345.20, 191,819,017.80 and 47,089,815.60

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Solution

The fourth proportional to 127,879,345.20, 191,819,017.80 and 47,089,815.60 is: 70,634,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,879,345.20 : 191,819,017.80 = 47,089,815.60 : x
  2. Step 2: Convert to fraction form
    127,879,345.20/191,819,017.80 = 47,089,815.60/x
  3. Step 3: Cross multiply
    127,879,345.20x = 191,819,017.80 × 47,089,815.60
  4. Step 4: Simplify right side
    127,879,345.20x = 9,032,722,176,775,118
  5. Step 5: Solve for x
    x = 9,032,722,176,775,118/127,879,345.20
  6. Step 6: Final answer
    x = 70,634,723.40

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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.