Home / 87,019,068.21-120,089,740.50-47,864,488.26

Finding the Fourth Proportional to 87,019,068.21, 120,089,740.50 and 47,864,488.26

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Solution

The fourth proportional to 87,019,068.21, 120,089,740.50 and 47,864,488.26 is: 66,054,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019,068.21 : 120,089,740.50 = 47,864,488.26 : x
  2. Step 2: Convert to fraction form
    87,019,068.21/120,089,740.50 = 47,864,488.26/x
  3. Step 3: Cross multiply
    87,019,068.21x = 120,089,740.50 × 47,864,488.26
  4. Step 4: Simplify right side
    87,019,068.21x = 5,748,033,974,308,696
  5. Step 5: Solve for x
    x = 5,748,033,974,308,696/87,019,068.21
  6. Step 6: Final answer
    x = 66,054,878.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.