Home / 651,609,909.40-977,438,483.70-191,594,579.80

Finding the Fourth Proportional to 651,609,909.40, 977,438,483.70 and 191,594,579.80

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Solution

The fourth proportional to 651,609,909.40, 977,438,483.70 and 191,594,579.80 is: 287,398,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,609,909.40 : 977,438,483.70 = 191,594,579.80 : x
  2. Step 2: Convert to fraction form
    651,609,909.40/977,438,483.70 = 191,594,579.80/x
  3. Step 3: Cross multiply
    651,609,909.40x = 977,438,483.70 × 191,594,579.80
  4. Step 4: Simplify right side
    651,609,909.40x = 187,271,915,564,850,656
  5. Step 5: Solve for x
    x = 187,271,915,564,850,656/651,609,909.40
  6. Step 6: Final answer
    x = 287,398,814.63

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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.