Home / 782,406,075.80-1,173,609,113.70-700,776,738.20

Finding the Fourth Proportional to 782,406,075.80, 1,173,609,113.70 and 700,776,738.20

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Solution

The fourth proportional to 782,406,075.80, 1,173,609,113.70 and 700,776,738.20 is: 1,051,165,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,406,075.80 : 1,173,609,113.70 = 700,776,738.20 : x
  2. Step 2: Convert to fraction form
    782,406,075.80/1,173,609,113.70 = 700,776,738.20/x
  3. Step 3: Cross multiply
    782,406,075.80x = 1,173,609,113.70 × 700,776,738.20
  4. Step 4: Simplify right side
    782,406,075.80x = 822,437,966,620,478,976
  5. Step 5: Solve for x
    x = 822,437,966,620,478,976/782,406,075.80
  6. Step 6: Final answer
    x = 1,051,165,107.30

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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.