Home / 914,332,881.42-1,261,884,050.28-512,555,146.29

Finding the Fourth Proportional to 914,332,881.42, 1,261,884,050.28 and 512,555,146.29

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Solution

The fourth proportional to 914,332,881.42, 1,261,884,050.28 and 512,555,146.29 is: 707,384,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,332,881.42 : 1,261,884,050.28 = 512,555,146.29 : x
  2. Step 2: Convert to fraction form
    914,332,881.42/1,261,884,050.28 = 512,555,146.29/x
  3. Step 3: Cross multiply
    914,332,881.42x = 1,261,884,050.28 × 512,555,146.29
  4. Step 4: Simplify right side
    914,332,881.42x = 646,785,163,992,283,136
  5. Step 5: Solve for x
    x = 646,785,163,992,283,136/914,332,881.42
  6. Step 6: Final answer
    x = 707,384,779.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.