Home / 509,963,742.30-763,182,016.65-305,638,455.90

Finding the Fourth Proportional to 509,963,742.30, 763,182,016.65 and 305,638,455.90

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Solution

The fourth proportional to 509,963,742.30, 763,182,016.65 and 305,638,455.90 is: 457,400,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,963,742.30 : 763,182,016.65 = 305,638,455.90 : x
  2. Step 2: Convert to fraction form
    509,963,742.30/763,182,016.65 = 305,638,455.90/x
  3. Step 3: Cross multiply
    509,963,742.30x = 763,182,016.65 × 305,638,455.90
  4. Step 4: Simplify right side
    509,963,742.30x = 233,257,773,139,554,080
  5. Step 5: Solve for x
    x = 233,257,773,139,554,080/509,963,742.30
  6. Step 6: Final answer
    x = 457,400,700.86

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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.