Home / 487,239,620.40-730,859,430.60-372,448,364.40

Finding the Fourth Proportional to 487,239,620.40, 730,859,430.60 and 372,448,364.40

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Solution

The fourth proportional to 487,239,620.40, 730,859,430.60 and 372,448,364.40 is: 558,672,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,239,620.40 : 730,859,430.60 = 372,448,364.40 : x
  2. Step 2: Convert to fraction form
    487,239,620.40/730,859,430.60 = 372,448,364.40/x
  3. Step 3: Cross multiply
    487,239,620.40x = 730,859,430.60 × 372,448,364.40
  4. Step 4: Simplify right side
    487,239,620.40x = 272,207,399,533,285,312
  5. Step 5: Solve for x
    x = 272,207,399,533,285,312/487,239,620.40
  6. Step 6: Final answer
    x = 558,672,546.60

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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.