Home / 647,354,379.60-971,031,569.40-238,325,893.20

Finding the Fourth Proportional to 647,354,379.60, 971,031,569.40 and 238,325,893.20

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Solution

The fourth proportional to 647,354,379.60, 971,031,569.40 and 238,325,893.20 is: 357,488,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,354,379.60 : 971,031,569.40 = 238,325,893.20 : x
  2. Step 2: Convert to fraction form
    647,354,379.60/971,031,569.40 = 238,325,893.20/x
  3. Step 3: Cross multiply
    647,354,379.60x = 971,031,569.40 × 238,325,893.20
  4. Step 4: Simplify right side
    647,354,379.60x = 231,421,966,102,652,768
  5. Step 5: Solve for x
    x = 231,421,966,102,652,768/647,354,379.60
  6. Step 6: Final answer
    x = 357,488,839.80

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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.