Home / 472,573,257.80-708,859,886.70-127,526,331.20

Finding the Fourth Proportional to 472,573,257.80, 708,859,886.70 and 127,526,331.20

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Solution

The fourth proportional to 472,573,257.80, 708,859,886.70 and 127,526,331.20 is: 191,289,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,573,257.80 : 708,859,886.70 = 127,526,331.20 : x
  2. Step 2: Convert to fraction form
    472,573,257.80/708,859,886.70 = 127,526,331.20/x
  3. Step 3: Cross multiply
    472,573,257.80x = 708,859,886.70 × 127,526,331.20
  4. Step 4: Simplify right side
    472,573,257.80x = 90,398,300,685,698,688
  5. Step 5: Solve for x
    x = 90,398,300,685,698,688/472,573,257.80
  6. Step 6: Final answer
    x = 191,289,496.80

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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.