Home / 806,706,905.80-1,210,060,358.70-531,207,891.40

Finding the Fourth Proportional to 806,706,905.80, 1,210,060,358.70 and 531,207,891.40

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Solution

The fourth proportional to 806,706,905.80, 1,210,060,358.70 and 531,207,891.40 is: 796,811,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,706,905.80 : 1,210,060,358.70 = 531,207,891.40 : x
  2. Step 2: Convert to fraction form
    806,706,905.80/1,210,060,358.70 = 531,207,891.40/x
  3. Step 3: Cross multiply
    806,706,905.80x = 1,210,060,358.70 × 531,207,891.40
  4. Step 4: Simplify right side
    806,706,905.80x = 642,793,611,611,754,624
  5. Step 5: Solve for x
    x = 642,793,611,611,754,624/806,706,905.80
  6. Step 6: Final answer
    x = 796,811,837.10

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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.