Home / 282,365,018.40-423,547,527.60-129,310,010.40

Finding the Fourth Proportional to 282,365,018.40, 423,547,527.60 and 129,310,010.40

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Solution

The fourth proportional to 282,365,018.40, 423,547,527.60 and 129,310,010.40 is: 193,965,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,365,018.40 : 423,547,527.60 = 129,310,010.40 : x
  2. Step 2: Convert to fraction form
    282,365,018.40/423,547,527.60 = 129,310,010.40/x
  3. Step 3: Cross multiply
    282,365,018.40x = 423,547,527.60 × 129,310,010.40
  4. Step 4: Simplify right side
    282,365,018.40x = 54,768,935,198,850,296
  5. Step 5: Solve for x
    x = 54,768,935,198,850,296/282,365,018.40
  6. Step 6: Final answer
    x = 193,965,015.60

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Similar ratio
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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.