Home / 1,272,505,681.22-1,908,739,314.36-572,503,498.43

Finding the Fourth Proportional to 1,272,505,681.22, 1,908,739,314.36 and 572,503,498.43

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Solution

The fourth proportional to 1,272,505,681.22, 1,908,739,314.36 and 572,503,498.43 is: 858,746,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,505,681.22 : 1,908,739,314.36 = 572,503,498.43 : x
  2. Step 2: Convert to fraction form
    1,272,505,681.22/1,908,739,314.36 = 572,503,498.43/x
  3. Step 3: Cross multiply
    1,272,505,681.22x = 1,908,739,314.36 × 572,503,498.43
  4. Step 4: Simplify right side
    1,272,505,681.22x = 1,092,759,935,052,435,712
  5. Step 5: Solve for x
    x = 1,092,759,935,052,435,712/1,272,505,681.22
  6. Step 6: Final answer
    x = 858,746,606.15

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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.