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Finding the Fourth Proportional to 485,894,697.96, 729,250,814.03 and 455,249,097.35

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Solution

The fourth proportional to 485,894,697.96, 729,250,814.03 and 455,249,097.35 is: 683,256,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,894,697.96 : 729,250,814.03 = 455,249,097.35 : x
  2. Step 2: Convert to fraction form
    485,894,697.96/729,250,814.03 = 455,249,097.35/x
  3. Step 3: Cross multiply
    485,894,697.96x = 729,250,814.03 × 455,249,097.35
  4. Step 4: Simplify right side
    485,894,697.96x = 331,990,774,822,987,712
  5. Step 5: Solve for x
    x = 331,990,774,822,987,712/485,894,697.96
  6. Step 6: Final answer
    x = 683,256,631.98

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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.