Home / 803,916,220,314.60-1,206,230,431,918.40-421,369,381,670.78

Finding the Fourth Proportional to 803,916,220,314.60, 1,206,230,431,918.40 and 421,369,381,670.78

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Solution

The fourth proportional to 803,916,220,314.60, 1,206,230,431,918.40 and 421,369,381,670.78 is: 632,240,721,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,916,220,314.60 : 1,206,230,431,918.40 = 421,369,381,670.78 : x
  2. Step 2: Convert to fraction form
    803,916,220,314.60/1,206,230,431,918.40 = 421,369,381,670.78/x
  3. Step 3: Cross multiply
    803,916,220,314.60x = 1,206,230,431,918.40 × 421,369,381,670.78
  4. Step 4: Simplify right side
    803,916,220,314.60x = 508,268,571,249,934,063,370,240
  5. Step 5: Solve for x
    x = 508,268,571,249,934,063,370,240/803,916,220,314.60
  6. Step 6: Final answer
    x = 632,240,721,615.28

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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.