Home / 845,188,615.80-1,267,782,923.70-518,671,265.40

Finding the Fourth Proportional to 845,188,615.80, 1,267,782,923.70 and 518,671,265.40

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Solution

The fourth proportional to 845,188,615.80, 1,267,782,923.70 and 518,671,265.40 is: 778,006,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,188,615.80 : 1,267,782,923.70 = 518,671,265.40 : x
  2. Step 2: Convert to fraction form
    845,188,615.80/1,267,782,923.70 = 518,671,265.40/x
  3. Step 3: Cross multiply
    845,188,615.80x = 1,267,782,923.70 × 518,671,265.40
  4. Step 4: Simplify right side
    845,188,615.80x = 657,562,573,287,990,656
  5. Step 5: Solve for x
    x = 657,562,573,287,990,656/845,188,615.80
  6. Step 6: Final answer
    x = 778,006,898.10

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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.