Home / 1,570,310,172-2,167,021,489.02-865,460,471.23

Finding the Fourth Proportional to 1,570,310,172, 2,167,021,489.02 and 865,460,471.23

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Solution

The fourth proportional to 1,570,310,172, 2,167,021,489.02 and 865,460,471.23 is: 1,194,331,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,310,172 : 2,167,021,489.02 = 865,460,471.23 : x
  2. Step 2: Convert to fraction form
    1,570,310,172/2,167,021,489.02 = 865,460,471.23/x
  3. Step 3: Cross multiply
    1,570,310,172x = 2,167,021,489.02 × 865,460,471.23
  4. Step 4: Simplify right side
    1,570,310,172x = 1,875,471,439,052,785,408
  5. Step 5: Solve for x
    x = 1,875,471,439,052,785,408/1,570,310,172
  6. Step 6: Final answer
    x = 1,194,331,841.25

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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.