Home / 448,430,405.90-672,645,608.87-429,059,381.45

Finding the Fourth Proportional to 448,430,405.90, 672,645,608.87 and 429,059,381.45

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Solution

The fourth proportional to 448,430,405.90, 672,645,608.87 and 429,059,381.45 is: 643,589,072.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,430,405.90 : 672,645,608.87 = 429,059,381.45 : x
  2. Step 2: Convert to fraction form
    448,430,405.90/672,645,608.87 = 429,059,381.45/x
  3. Step 3: Cross multiply
    448,430,405.90x = 672,645,608.87 × 429,059,381.45
  4. Step 4: Simplify right side
    448,430,405.90x = 288,604,908,874,675,520
  5. Step 5: Solve for x
    x = 288,604,908,874,675,520/448,430,405.90
  6. Step 6: Final answer
    x = 643,589,072.19

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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.