Home / 786,807,088.51-1,086,283,801.35-500,859,956.52

Finding the Fourth Proportional to 786,807,088.51, 1,086,283,801.35 and 500,859,956.52

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Solution

The fourth proportional to 786,807,088.51, 1,086,283,801.35 and 500,859,956.52 is: 691,498,672.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,807,088.51 : 1,086,283,801.35 = 500,859,956.52 : x
  2. Step 2: Convert to fraction form
    786,807,088.51/1,086,283,801.35 = 500,859,956.52/x
  3. Step 3: Cross multiply
    786,807,088.51x = 1,086,283,801.35 × 500,859,956.52
  4. Step 4: Simplify right side
    786,807,088.51x = 544,076,057,517,566,592
  5. Step 5: Solve for x
    x = 544,076,057,517,566,592/786,807,088.51
  6. Step 6: Final answer
    x = 691,498,672.88

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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.