Home / 153,433,490.85-211,745,775.69-87,355,297.89

Finding the Fourth Proportional to 153,433,490.85, 211,745,775.69 and 87,355,297.89

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Solution

The fourth proportional to 153,433,490.85, 211,745,775.69 and 87,355,297.89 is: 120,554,614.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,433,490.85 : 211,745,775.69 = 87,355,297.89 : x
  2. Step 2: Convert to fraction form
    153,433,490.85/211,745,775.69 = 87,355,297.89/x
  3. Step 3: Cross multiply
    153,433,490.85x = 211,745,775.69 × 87,355,297.89
  4. Step 4: Simplify right side
    153,433,490.85x = 18,497,115,312,349,072
  5. Step 5: Solve for x
    x = 18,497,115,312,349,072/153,433,490.85
  6. Step 6: Final answer
    x = 120,554,614.31

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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.