Home / 70,046,083.40-105,069,125.10-66,077,990.60

Finding the Fourth Proportional to 70,046,083.40, 105,069,125.10 and 66,077,990.60

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Solution

The fourth proportional to 70,046,083.40, 105,069,125.10 and 66,077,990.60 is: 99,116,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046,083.40 : 105,069,125.10 = 66,077,990.60 : x
  2. Step 2: Convert to fraction form
    70,046,083.40/105,069,125.10 = 66,077,990.60/x
  3. Step 3: Cross multiply
    70,046,083.40x = 105,069,125.10 × 66,077,990.60
  4. Step 4: Simplify right side
    70,046,083.40x = 6,942,756,660,708,024
  5. Step 5: Solve for x
    x = 6,942,756,660,708,024/70,046,083.40
  6. Step 6: Final answer
    x = 99,116,985.90

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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.