Home / 551,621,271.12-761,243,221.44-304,111,482.72

Finding the Fourth Proportional to 551,621,271.12, 761,243,221.44 and 304,111,482.72

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Solution

The fourth proportional to 551,621,271.12, 761,243,221.44 and 304,111,482.72 is: 419,677,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,621,271.12 : 761,243,221.44 = 304,111,482.72 : x
  2. Step 2: Convert to fraction form
    551,621,271.12/761,243,221.44 = 304,111,482.72/x
  3. Step 3: Cross multiply
    551,621,271.12x = 761,243,221.44 × 304,111,482.72
  4. Step 4: Simplify right side
    551,621,271.12x = 231,502,804,782,667,744
  5. Step 5: Solve for x
    x = 231,502,804,782,667,744/551,621,271.12
  6. Step 6: Final answer
    x = 419,677,080.82

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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.