Home / 96,827,328.40-145,146,514.20-86,623,661.20

Finding the Fourth Proportional to 96,827,328.40, 145,146,514.20 and 86,623,661.20

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Solution

The fourth proportional to 96,827,328.40, 145,146,514.20 and 86,623,661.20 is: 129,850,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,827,328.40 : 145,146,514.20 = 86,623,661.20 : x
  2. Step 2: Convert to fraction form
    96,827,328.40/145,146,514.20 = 86,623,661.20/x
  3. Step 3: Cross multiply
    96,827,328.40x = 145,146,514.20 × 86,623,661.20
  4. Step 4: Simplify right side
    96,827,328.40x = 12,573,122,470,421,788
  5. Step 5: Solve for x
    x = 12,573,122,470,421,788/96,827,328.40
  6. Step 6: Final answer
    x = 129,850,969.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.