Home / 8,528,438.40-12,776,068.80-5,152,617.60

Finding the Fourth Proportional to 8,528,438.40, 12,776,068.80 and 5,152,617.60

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Solution

The fourth proportional to 8,528,438.40, 12,776,068.80 and 5,152,617.60 is: 7,718,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528,438.40 : 12,776,068.80 = 5,152,617.60 : x
  2. Step 2: Convert to fraction form
    8,528,438.40/12,776,068.80 = 5,152,617.60/x
  3. Step 3: Cross multiply
    8,528,438.40x = 12,776,068.80 × 5,152,617.60
  4. Step 4: Simplify right side
    8,528,438.40x = 65,830,196,957,690.88
  5. Step 5: Solve for x
    x = 65,830,196,957,690.88/8,528,438.40
  6. Step 6: Final answer
    x = 7,718,903.96

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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.