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Finding the Fourth Proportional to 1,201,593,700.80, 1,802,709,415.80 and 425,158,399.80

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Solution

The fourth proportional to 1,201,593,700.80, 1,802,709,415.80 and 425,158,399.80 is: 637,850,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,593,700.80 : 1,802,709,415.80 = 425,158,399.80 : x
  2. Step 2: Convert to fraction form
    1,201,593,700.80/1,802,709,415.80 = 425,158,399.80/x
  3. Step 3: Cross multiply
    1,201,593,700.80x = 1,802,709,415.80 × 425,158,399.80
  4. Step 4: Simplify right side
    1,201,593,700.80x = 766,437,050,525,920,896
  5. Step 5: Solve for x
    x = 766,437,050,525,920,896/1,201,593,700.80
  6. Step 6: Final answer
    x = 637,850,423.16

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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.