Home / 20,547,869.40-30,821,804.10-10,470,173.40

Finding the Fourth Proportional to 20,547,869.40, 30,821,804.10 and 10,470,173.40

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Solution

The fourth proportional to 20,547,869.40, 30,821,804.10 and 10,470,173.40 is: 15,705,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547,869.40 : 30,821,804.10 = 10,470,173.40 : x
  2. Step 2: Convert to fraction form
    20,547,869.40/30,821,804.10 = 10,470,173.40/x
  3. Step 3: Cross multiply
    20,547,869.40x = 30,821,804.10 × 10,470,173.40
  4. Step 4: Simplify right side
    20,547,869.40x = 322,709,633,427,830.94
  5. Step 5: Solve for x
    x = 322,709,633,427,830.94/20,547,869.40
  6. Step 6: Final answer
    x = 15,705,260.10

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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.