Home / 279,076,048.38-385,124,947.38-155,345,954.76

Finding the Fourth Proportional to 279,076,048.38, 385,124,947.38 and 155,345,954.76

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Solution

The fourth proportional to 279,076,048.38, 385,124,947.38 and 155,345,954.76 is: 214,377,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,076,048.38 : 385,124,947.38 = 155,345,954.76 : x
  2. Step 2: Convert to fraction form
    279,076,048.38/385,124,947.38 = 155,345,954.76/x
  3. Step 3: Cross multiply
    279,076,048.38x = 385,124,947.38 × 155,345,954.76
  4. Step 4: Simplify right side
    279,076,048.38x = 59,827,602,652,640,856
  5. Step 5: Solve for x
    x = 59,827,602,652,640,856/279,076,048.38
  6. Step 6: Final answer
    x = 214,377,417.91

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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.