Home / 212,798,953.80-293,662,423.56-115,013,809.80

Finding the Fourth Proportional to 212,798,953.80, 293,662,423.56 and 115,013,809.80

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Solution

The fourth proportional to 212,798,953.80, 293,662,423.56 and 115,013,809.80 is: 158,718,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,798,953.80 : 293,662,423.56 = 115,013,809.80 : x
  2. Step 2: Convert to fraction form
    212,798,953.80/293,662,423.56 = 115,013,809.80/x
  3. Step 3: Cross multiply
    212,798,953.80x = 293,662,423.56 × 115,013,809.80
  4. Step 4: Simplify right side
    212,798,953.80x = 33,775,234,128,736,880
  5. Step 5: Solve for x
    x = 33,775,234,128,736,880/212,798,953.80
  6. Step 6: Final answer
    x = 158,718,985.81

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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.