Home / 291,252,800.15-401,928,848.75-157,290,705.12

Finding the Fourth Proportional to 291,252,800.15, 401,928,848.75 and 157,290,705.12

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Solution

The fourth proportional to 291,252,800.15, 401,928,848.75 and 157,290,705.12 is: 217,061,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,252,800.15 : 401,928,848.75 = 157,290,705.12 : x
  2. Step 2: Convert to fraction form
    291,252,800.15/401,928,848.75 = 157,290,705.12/x
  3. Step 3: Cross multiply
    291,252,800.15x = 401,928,848.75 × 157,290,705.12
  4. Step 4: Simplify right side
    291,252,800.15x = 63,219,672,028,962,152
  5. Step 5: Solve for x
    x = 63,219,672,028,962,152/291,252,800.15
  6. Step 6: Final answer
    x = 217,061,164.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.