Home / 748,865,347.70-1,123,298,021.55-727,341,987.20

Finding the Fourth Proportional to 748,865,347.70, 1,123,298,021.55 and 727,341,987.20

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Solution

The fourth proportional to 748,865,347.70, 1,123,298,021.55 and 727,341,987.20 is: 1,091,012,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,347.70 : 1,123,298,021.55 = 727,341,987.20 : x
  2. Step 2: Convert to fraction form
    748,865,347.70/1,123,298,021.55 = 727,341,987.20/x
  3. Step 3: Cross multiply
    748,865,347.70x = 1,123,298,021.55 × 727,341,987.20
  4. Step 4: Simplify right side
    748,865,347.70x = 817,021,815,212,005,504
  5. Step 5: Solve for x
    x = 817,021,815,212,005,504/748,865,347.70
  6. Step 6: Final answer
    x = 1,091,012,980.80

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1.5x scale

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.