Home / 1,323,080,237.86-1,984,675,127.48-390,403,067.30

Finding the Fourth Proportional to 1,323,080,237.86, 1,984,675,127.48 and 390,403,067.30

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Solution

The fourth proportional to 1,323,080,237.86, 1,984,675,127.48 and 390,403,067.30 is: 585,620,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,080,237.86 : 1,984,675,127.48 = 390,403,067.30 : x
  2. Step 2: Convert to fraction form
    1,323,080,237.86/1,984,675,127.48 = 390,403,067.30/x
  3. Step 3: Cross multiply
    1,323,080,237.86x = 1,984,675,127.48 × 390,403,067.30
  4. Step 4: Simplify right side
    1,323,080,237.86x = 774,823,257,362,210,560
  5. Step 5: Solve for x
    x = 774,823,257,362,210,560/1,323,080,237.86
  6. Step 6: Final answer
    x = 585,620,762.21

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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.