Home / 365,972,128.40-549,383,345.40-220,569,870.80

Finding the Fourth Proportional to 365,972,128.40, 549,383,345.40 and 220,569,870.80

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Solution

The fourth proportional to 365,972,128.40, 549,383,345.40 and 220,569,870.80 is: 331,111,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,972,128.40 : 549,383,345.40 = 220,569,870.80 : x
  2. Step 2: Convert to fraction form
    365,972,128.40/549,383,345.40 = 220,569,870.80/x
  3. Step 3: Cross multiply
    365,972,128.40x = 549,383,345.40 × 220,569,870.80
  4. Step 4: Simplify right side
    365,972,128.40x = 121,177,413,514,549,776
  5. Step 5: Solve for x
    x = 121,177,413,514,549,776/365,972,128.40
  6. Step 6: Final answer
    x = 331,111,044.01

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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.