Home / 8,778,428.40-13,146,647.40-7,098,812.40

Finding the Fourth Proportional to 8,778,428.40, 13,146,647.40 and 7,098,812.40

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Solution

The fourth proportional to 8,778,428.40, 13,146,647.40 and 7,098,812.40 is: 10,631,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778,428.40 : 13,146,647.40 = 7,098,812.40 : x
  2. Step 2: Convert to fraction form
    8,778,428.40/13,146,647.40 = 7,098,812.40/x
  3. Step 3: Cross multiply
    8,778,428.40x = 13,146,647.40 × 7,098,812.40
  4. Step 4: Simplify right side
    8,778,428.40x = 93,325,583,581,547.77
  5. Step 5: Solve for x
    x = 93,325,583,581,547.77/8,778,428.40
  6. Step 6: Final answer
    x = 10,631,240.51

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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.