Home / 207,001,707.96-310,853,994.84-138,355,641.84

Finding the Fourth Proportional to 207,001,707.96, 310,853,994.84 and 138,355,641.84

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Solution

The fourth proportional to 207,001,707.96, 310,853,994.84 and 138,355,641.84 is: 207,768,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,001,707.96 : 310,853,994.84 = 138,355,641.84 : x
  2. Step 2: Convert to fraction form
    207,001,707.96/310,853,994.84 = 138,355,641.84/x
  3. Step 3: Cross multiply
    207,001,707.96x = 310,853,994.84 × 138,355,641.84
  4. Step 4: Simplify right side
    207,001,707.96x = 43,008,403,974,616,248
  5. Step 5: Solve for x
    x = 43,008,403,974,616,248/207,001,707.96
  6. Step 6: Final answer
    x = 207,768,353.21

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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.