Home / 1,782,425,982.65-2,459,624,422.28-989,409,501.05

Finding the Fourth Proportional to 1,782,425,982.65, 2,459,624,422.28 and 989,409,501.05

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Solution

The fourth proportional to 1,782,425,982.65, 2,459,624,422.28 and 989,409,501.05 is: 1,365,316,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782,425,982.65 : 2,459,624,422.28 = 989,409,501.05 : x
  2. Step 2: Convert to fraction form
    1,782,425,982.65/2,459,624,422.28 = 989,409,501.05/x
  3. Step 3: Cross multiply
    1,782,425,982.65x = 2,459,624,422.28 × 989,409,501.05
  4. Step 4: Simplify right side
    1,782,425,982.65x = 2,433,575,772,401,204,224
  5. Step 5: Solve for x
    x = 2,433,575,772,401,204,224/1,782,425,982.65
  6. Step 6: Final answer
    x = 1,365,316,594.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.