Home / 845,188,360.80-1,267,782,541.20-518,671,010.40

Finding the Fourth Proportional to 845,188,360.80, 1,267,782,541.20 and 518,671,010.40

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Solution

The fourth proportional to 845,188,360.80, 1,267,782,541.20 and 518,671,010.40 is: 778,006,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,188,360.80 : 1,267,782,541.20 = 518,671,010.40 : x
  2. Step 2: Convert to fraction form
    845,188,360.80/1,267,782,541.20 = 518,671,010.40/x
  3. Step 3: Cross multiply
    845,188,360.80x = 1,267,782,541.20 × 518,671,010.40
  4. Step 4: Simplify right side
    845,188,360.80x = 657,562,051,611,683,584
  5. Step 5: Solve for x
    x = 657,562,051,611,683,584/845,188,360.80
  6. Step 6: Final answer
    x = 778,006,515.60

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1.5x scale

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.