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Finding the Fourth Proportional to 304,402,421.40, 455,847,804.90 and 243,936,245.40

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Solution

The fourth proportional to 304,402,421.40, 455,847,804.90 and 243,936,245.40 is: 365,298,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,402,421.40 : 455,847,804.90 = 243,936,245.40 : x
  2. Step 2: Convert to fraction form
    304,402,421.40/455,847,804.90 = 243,936,245.40/x
  3. Step 3: Cross multiply
    304,402,421.40x = 455,847,804.90 × 243,936,245.40
  4. Step 4: Simplify right side
    304,402,421.40x = 111,197,802,001,137,712
  5. Step 5: Solve for x
    x = 111,197,802,001,137,712/304,402,421.40
  6. Step 6: Final answer
    x = 365,298,677.62

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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.