Home / 1,243,085,448.32-1,715,457,658.56-686,168,348.48

Finding the Fourth Proportional to 1,243,085,448.32, 1,715,457,658.56 and 686,168,348.48

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Solution

The fourth proportional to 1,243,085,448.32, 1,715,457,658.56 and 686,168,348.48 is: 946,912,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,085,448.32 : 1,715,457,658.56 = 686,168,348.48 : x
  2. Step 2: Convert to fraction form
    1,243,085,448.32/1,715,457,658.56 = 686,168,348.48/x
  3. Step 3: Cross multiply
    1,243,085,448.32x = 1,715,457,658.56 × 686,168,348.48
  4. Step 4: Simplify right side
    1,243,085,448.32x = 1,177,092,748,461,483,008
  5. Step 5: Solve for x
    x = 1,177,092,748,461,483,008/1,243,085,448.32
  6. Step 6: Final answer
    x = 946,912,177.32

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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.