Home / 930,509,817.96-1,284,294,097.98-554,386,742.40

Finding the Fourth Proportional to 930,509,817.96, 1,284,294,097.98 and 554,386,742.40

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Solution

The fourth proportional to 930,509,817.96, 1,284,294,097.98 and 554,386,742.40 is: 765,167,231.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,509,817.96 : 1,284,294,097.98 = 554,386,742.40 : x
  2. Step 2: Convert to fraction form
    930,509,817.96/1,284,294,097.98 = 554,386,742.40/x
  3. Step 3: Cross multiply
    930,509,817.96x = 1,284,294,097.98 × 554,386,742.40
  4. Step 4: Simplify right side
    930,509,817.96x = 711,995,621,262,678,656
  5. Step 5: Solve for x
    x = 711,995,621,262,678,656/930,509,817.96
  6. Step 6: Final answer
    x = 765,167,231.47

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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.