Home / 779,238,807.62-1,075,336,263.72-422,003,681.48

Finding the Fourth Proportional to 779,238,807.62, 1,075,336,263.72 and 422,003,681.48

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Solution

The fourth proportional to 779,238,807.62, 1,075,336,263.72 and 422,003,681.48 is: 582,357,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,238,807.62 : 1,075,336,263.72 = 422,003,681.48 : x
  2. Step 2: Convert to fraction form
    779,238,807.62/1,075,336,263.72 = 422,003,681.48/x
  3. Step 3: Cross multiply
    779,238,807.62x = 1,075,336,263.72 × 422,003,681.48
  4. Step 4: Simplify right side
    779,238,807.62x = 453,795,862,113,411,520
  5. Step 5: Solve for x
    x = 453,795,862,113,411,520/779,238,807.62
  6. Step 6: Final answer
    x = 582,357,882.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.