Home / 979,819,916.70-1,470,401,721.45-434,952,486.30

Finding the Fourth Proportional to 979,819,916.70, 1,470,401,721.45 and 434,952,486.30

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Solution

The fourth proportional to 979,819,916.70, 1,470,401,721.45 and 434,952,486.30 is: 652,726,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,819,916.70 : 1,470,401,721.45 = 434,952,486.30 : x
  2. Step 2: Convert to fraction form
    979,819,916.70/1,470,401,721.45 = 434,952,486.30/x
  3. Step 3: Cross multiply
    979,819,916.70x = 1,470,401,721.45 × 434,952,486.30
  4. Step 4: Simplify right side
    979,819,916.70x = 639,554,884,604,477,568
  5. Step 5: Solve for x
    x = 639,554,884,604,477,568/979,819,916.70
  6. Step 6: Final answer
    x = 652,726,969.22

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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.