Home / 145,216,162.10-200,398,345.44-79,136,678.54

Finding the Fourth Proportional to 145,216,162.10, 200,398,345.44 and 79,136,678.54

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Solution

The fourth proportional to 145,216,162.10, 200,398,345.44 and 79,136,678.54 is: 109,208,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,216,162.10 : 200,398,345.44 = 79,136,678.54 : x
  2. Step 2: Convert to fraction form
    145,216,162.10/200,398,345.44 = 79,136,678.54/x
  3. Step 3: Cross multiply
    145,216,162.10x = 200,398,345.44 × 79,136,678.54
  4. Step 4: Simplify right side
    145,216,162.10x = 15,858,859,443,033,156
  5. Step 5: Solve for x
    x = 15,858,859,443,033,156/145,216,162.10
  6. Step 6: Final answer
    x = 109,208,639.13

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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.