Home / 71,089,871.20-106,634,806.80-65,547,138.40

Finding the Fourth Proportional to 71,089,871.20, 106,634,806.80 and 65,547,138.40

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Solution

The fourth proportional to 71,089,871.20, 106,634,806.80 and 65,547,138.40 is: 98,320,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089,871.20 : 106,634,806.80 = 65,547,138.40 : x
  2. Step 2: Convert to fraction form
    71,089,871.20/106,634,806.80 = 65,547,138.40/x
  3. Step 3: Cross multiply
    71,089,871.20x = 106,634,806.80 × 65,547,138.40
  4. Step 4: Simplify right side
    71,089,871.20x = 6,989,606,439,576,861
  5. Step 5: Solve for x
    x = 6,989,606,439,576,861/71,089,871.20
  6. Step 6: Final answer
    x = 98,320,707.60

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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.