Home / 127,878,990.70-191,818,486.05-47,089,461.10

Finding the Fourth Proportional to 127,878,990.70, 191,818,486.05 and 47,089,461.10

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Solution

The fourth proportional to 127,878,990.70, 191,818,486.05 and 47,089,461.10 is: 70,634,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,878,990.70 : 191,818,486.05 = 47,089,461.10 : x
  2. Step 2: Convert to fraction form
    127,878,990.70/191,818,486.05 = 47,089,461.10/x
  3. Step 3: Cross multiply
    127,878,990.70x = 191,818,486.05 × 47,089,461.10
  4. Step 4: Simplify right side
    127,878,990.70x = 9,032,629,137,112,368
  5. Step 5: Solve for x
    x = 9,032,629,137,112,368/127,878,990.70
  6. Step 6: Final answer
    x = 70,634,191.65

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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.