Home / 71,089,999.20-106,634,998.80-65,547,266.40

Finding the Fourth Proportional to 71,089,999.20, 106,634,998.80 and 65,547,266.40

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Solution

The fourth proportional to 71,089,999.20, 106,634,998.80 and 65,547,266.40 is: 98,320,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089,999.20 : 106,634,998.80 = 65,547,266.40 : x
  2. Step 2: Convert to fraction form
    71,089,999.20/106,634,998.80 = 65,547,266.40/x
  3. Step 3: Cross multiply
    71,089,999.20x = 106,634,998.80 × 65,547,266.40
  4. Step 4: Simplify right side
    71,089,999.20x = 6,989,632,673,907,280
  5. Step 5: Solve for x
    x = 6,989,632,673,907,280/71,089,999.20
  6. Step 6: Final answer
    x = 98,320,899.60

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1.5x scale

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.