Home / 1,005,195,617.40-1,507,935,143.70-315,030,905.40

Finding the Fourth Proportional to 1,005,195,617.40, 1,507,935,143.70 and 315,030,905.40

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Solution

The fourth proportional to 1,005,195,617.40, 1,507,935,143.70 and 315,030,905.40 is: 472,590,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,195,617.40 : 1,507,935,143.70 = 315,030,905.40 : x
  2. Step 2: Convert to fraction form
    1,005,195,617.40/1,507,935,143.70 = 315,030,905.40/x
  3. Step 3: Cross multiply
    1,005,195,617.40x = 1,507,935,143.70 × 315,030,905.40
  4. Step 4: Simplify right side
    1,005,195,617.40x = 475,046,173,604,290,112
  5. Step 5: Solve for x
    x = 475,046,173,604,290,112/1,005,195,617.40
  6. Step 6: Final answer
    x = 472,590,772.76

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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.