Home / 279,076,595.22-385,125,702.48-155,346,501.60

Finding the Fourth Proportional to 279,076,595.22, 385,125,702.48 and 155,346,501.60

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Solution

The fourth proportional to 279,076,595.22, 385,125,702.48 and 155,346,501.60 is: 214,378,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,076,595.22 : 385,125,702.48 = 155,346,501.60 : x
  2. Step 2: Convert to fraction form
    279,076,595.22/385,125,702.48 = 155,346,501.60/x
  3. Step 3: Cross multiply
    279,076,595.22x = 385,125,702.48 × 155,346,501.60
  4. Step 4: Simplify right side
    279,076,595.22x = 59,827,930,556,510,448
  5. Step 5: Solve for x
    x = 59,827,930,556,510,448/279,076,595.22
  6. Step 6: Final answer
    x = 214,378,172.81

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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.