Home / 858,253,412.28-1,287,572,024.02-312,994,946.28

Finding the Fourth Proportional to 858,253,412.28, 1,287,572,024.02 and 312,994,946.28

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Solution

The fourth proportional to 858,253,412.28, 1,287,572,024.02 and 312,994,946.28 is: 469,562,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,253,412.28 : 1,287,572,024.02 = 312,994,946.28 : x
  2. Step 2: Convert to fraction form
    858,253,412.28/1,287,572,024.02 = 312,994,946.28/x
  3. Step 3: Cross multiply
    858,253,412.28x = 1,287,572,024.02 × 312,994,946.28
  4. Step 4: Simplify right side
    858,253,412.28x = 403,003,536,489,770,752
  5. Step 5: Solve for x
    x = 403,003,536,489,770,752/858,253,412.28
  6. Step 6: Final answer
    x = 469,562,405.14

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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.