Home / 105,015,902.40-157,523,853.60-28,338,807.60

Finding the Fourth Proportional to 105,015,902.40, 157,523,853.60 and 28,338,807.60

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Solution

The fourth proportional to 105,015,902.40, 157,523,853.60 and 28,338,807.60 is: 42,508,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,015,902.40 : 157,523,853.60 = 28,338,807.60 : x
  2. Step 2: Convert to fraction form
    105,015,902.40/157,523,853.60 = 28,338,807.60/x
  3. Step 3: Cross multiply
    105,015,902.40x = 157,523,853.60 × 28,338,807.60
  4. Step 4: Simplify right side
    105,015,902.40x = 4,464,038,179,580,967.50
  5. Step 5: Solve for x
    x = 4,464,038,179,580,967.50/105,015,902.40
  6. Step 6: Final answer
    x = 42,508,211.40

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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.