Home / 680,245,689,751.40-1,020,368,534,627.10-209,081,153,124.20

Finding the Fourth Proportional to 680,245,689,751.40, 1,020,368,534,627.10 and 209,081,153,124.20

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Solution

The fourth proportional to 680,245,689,751.40, 1,020,368,534,627.10 and 209,081,153,124.20 is: 313,621,729,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,245,689,751.40 : 1,020,368,534,627.10 = 209,081,153,124.20 : x
  2. Step 2: Convert to fraction form
    680,245,689,751.40/1,020,368,534,627.10 = 209,081,153,124.20/x
  3. Step 3: Cross multiply
    680,245,689,751.40x = 1,020,368,534,627.10 × 209,081,153,124.20
  4. Step 4: Simplify right side
    680,245,689,751.40x = 213,339,829,831,484,271,755,264
  5. Step 5: Solve for x
    x = 213,339,829,831,484,271,755,264/680,245,689,751.40
  6. Step 6: Final answer
    x = 313,621,729,686.30

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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.