Home / 489,696,005.40-734,544,008.10-425,923,085.40

Finding the Fourth Proportional to 489,696,005.40, 734,544,008.10 and 425,923,085.40

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Solution

The fourth proportional to 489,696,005.40, 734,544,008.10 and 425,923,085.40 is: 638,884,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,696,005.40 : 734,544,008.10 = 425,923,085.40 : x
  2. Step 2: Convert to fraction form
    489,696,005.40/734,544,008.10 = 425,923,085.40/x
  3. Step 3: Cross multiply
    489,696,005.40x = 734,544,008.10 × 425,923,085.40
  4. Step 4: Simplify right side
    489,696,005.40x = 312,859,250,292,034,560
  5. Step 5: Solve for x
    x = 312,859,250,292,034,560/489,696,005.40
  6. Step 6: Final answer
    x = 638,884,628.10

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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.