Home / 664,177,802.40-996,691,856.40-387,828,482.40

Finding the Fourth Proportional to 664,177,802.40, 996,691,856.40 and 387,828,482.40

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Solution

The fourth proportional to 664,177,802.40, 996,691,856.40 and 387,828,482.40 is: 581,990,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,177,802.40 : 996,691,856.40 = 387,828,482.40 : x
  2. Step 2: Convert to fraction form
    664,177,802.40/996,691,856.40 = 387,828,482.40/x
  3. Step 3: Cross multiply
    664,177,802.40x = 996,691,856.40 × 387,828,482.40
  4. Step 4: Simplify right side
    664,177,802.40x = 386,545,490,088,050,688
  5. Step 5: Solve for x
    x = 386,545,490,088,050,688/664,177,802.40
  6. Step 6: Final answer
    x = 581,990,979.96

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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.