Home / 1,323,296,887.12-1,985,160,947.04-390,714,006.22

Finding the Fourth Proportional to 1,323,296,887.12, 1,985,160,947.04 and 390,714,006.22

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Solution

The fourth proportional to 1,323,296,887.12, 1,985,160,947.04 and 390,714,006.22 is: 586,134,671.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,296,887.12 : 1,985,160,947.04 = 390,714,006.22 : x
  2. Step 2: Convert to fraction form
    1,323,296,887.12/1,985,160,947.04 = 390,714,006.22/x
  3. Step 3: Cross multiply
    1,323,296,887.12x = 1,985,160,947.04 × 390,714,006.22
  4. Step 4: Simplify right side
    1,323,296,887.12x = 775,630,186,609,487,744
  5. Step 5: Solve for x
    x = 775,630,186,609,487,744/1,323,296,887.12
  6. Step 6: Final answer
    x = 586,134,671.79

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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.