Home / 1,164,920,899.38-1,747,387,881.36-388,564,428.80

Finding the Fourth Proportional to 1,164,920,899.38, 1,747,387,881.36 and 388,564,428.80

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Solution

The fourth proportional to 1,164,920,899.38, 1,747,387,881.36 and 388,564,428.80 is: 582,848,822.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164,920,899.38 : 1,747,387,881.36 = 388,564,428.80 : x
  2. Step 2: Convert to fraction form
    1,164,920,899.38/1,747,387,881.36 = 388,564,428.80/x
  3. Step 3: Cross multiply
    1,164,920,899.38x = 1,747,387,881.36 × 388,564,428.80
  4. Step 4: Simplify right side
    1,164,920,899.38x = 678,972,774,003,953,664
  5. Step 5: Solve for x
    x = 678,972,774,003,953,664/1,164,920,899.38
  6. Step 6: Final answer
    x = 582,848,822.07

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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.