Home / 153,146,053.46-211,359,421.10-87,076,451.31

Finding the Fourth Proportional to 153,146,053.46, 211,359,421.10 and 87,076,451.31

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Solution

The fourth proportional to 153,146,053.46, 211,359,421.10 and 87,076,451.31 is: 120,175,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,146,053.46 : 211,359,421.10 = 87,076,451.31 : x
  2. Step 2: Convert to fraction form
    153,146,053.46/211,359,421.10 = 87,076,451.31/x
  3. Step 3: Cross multiply
    153,146,053.46x = 211,359,421.10 × 87,076,451.31
  4. Step 4: Simplify right side
    153,146,053.46x = 18,404,428,340,323,936
  5. Step 5: Solve for x
    x = 18,404,428,340,323,936/153,146,053.46
  6. Step 6: Final answer
    x = 120,175,661.89

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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.