Home / 839,810,457.80-1,259,715,686.70-470,966,784.20

Finding the Fourth Proportional to 839,810,457.80, 1,259,715,686.70 and 470,966,784.20

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Solution

The fourth proportional to 839,810,457.80, 1,259,715,686.70 and 470,966,784.20 is: 706,450,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,457.80 : 1,259,715,686.70 = 470,966,784.20 : x
  2. Step 2: Convert to fraction form
    839,810,457.80/1,259,715,686.70 = 470,966,784.20/x
  3. Step 3: Cross multiply
    839,810,457.80x = 1,259,715,686.70 × 470,966,784.20
  4. Step 4: Simplify right side
    839,810,457.80x = 593,284,245,971,393,664
  5. Step 5: Solve for x
    x = 593,284,245,971,393,664/839,810,457.80
  6. Step 6: Final answer
    x = 706,450,176.30

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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.