Home / 19,032,428.16-28,549,742.86-5,384,431.25

Finding the Fourth Proportional to 19,032,428.16, 28,549,742.86 and 5,384,431.25

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Solution

The fourth proportional to 19,032,428.16, 28,549,742.86 and 5,384,431.25 is: 8,076,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,032,428.16 : 28,549,742.86 = 5,384,431.25 : x
  2. Step 2: Convert to fraction form
    19,032,428.16/28,549,742.86 = 5,384,431.25/x
  3. Step 3: Cross multiply
    19,032,428.16x = 28,549,742.86 × 5,384,431.25
  4. Step 4: Simplify right side
    19,032,428.16x = 153,724,127,766,484.03
  5. Step 5: Solve for x
    x = 153,724,127,766,484.03/19,032,428.16
  6. Step 6: Final answer
    x = 8,076,958.26

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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.