Home / 354,283,970.40-531,649,904.40-208,717,250.40

Finding the Fourth Proportional to 354,283,970.40, 531,649,904.40 and 208,717,250.40

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Solution

The fourth proportional to 354,283,970.40, 531,649,904.40 and 208,717,250.40 is: 313,207,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,283,970.40 : 531,649,904.40 = 208,717,250.40 : x
  2. Step 2: Convert to fraction form
    354,283,970.40/531,649,904.40 = 208,717,250.40/x
  3. Step 3: Cross multiply
    354,283,970.40x = 531,649,904.40 × 208,717,250.40
  4. Step 4: Simplify right side
    354,283,970.40x = 110,964,506,221,790,864
  5. Step 5: Solve for x
    x = 110,964,506,221,790,864/354,283,970.40
  6. Step 6: Final answer
    x = 313,207,809.25

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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.