Home / 929,985,816.78-1,395,150,360.93-384,769,866.06

Finding the Fourth Proportional to 929,985,816.78, 1,395,150,360.93 and 384,769,866.06

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Solution

The fourth proportional to 929,985,816.78, 1,395,150,360.93 and 384,769,866.06 is: 577,225,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,985,816.78 : 1,395,150,360.93 = 384,769,866.06 : x
  2. Step 2: Convert to fraction form
    929,985,816.78/1,395,150,360.93 = 384,769,866.06/x
  3. Step 3: Cross multiply
    929,985,816.78x = 1,395,150,360.93 × 384,769,866.06
  4. Step 4: Simplify right side
    929,985,816.78x = 536,811,817,508,596,800
  5. Step 5: Solve for x
    x = 536,811,817,508,596,800/929,985,816.78
  6. Step 6: Final answer
    x = 577,225,811.21

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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.