Home / 105,378,678.42-145,424,297.90-57,693,137.26

Finding the Fourth Proportional to 105,378,678.42, 145,424,297.90 and 57,693,137.26

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Solution

The fourth proportional to 105,378,678.42, 145,424,297.90 and 57,693,137.26 is: 79,617,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,378,678.42 : 145,424,297.90 = 57,693,137.26 : x
  2. Step 2: Convert to fraction form
    105,378,678.42/145,424,297.90 = 57,693,137.26/x
  3. Step 3: Cross multiply
    105,378,678.42x = 145,424,297.90 × 57,693,137.26
  4. Step 4: Simplify right side
    105,378,678.42x = 8,389,983,979,683,830
  5. Step 5: Solve for x
    x = 8,389,983,979,683,830/105,378,678.42
  6. Step 6: Final answer
    x = 79,617,472.01

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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.