Home / 290,313,909.40-435,470,864.10-98,837,685.40

Finding the Fourth Proportional to 290,313,909.40, 435,470,864.10 and 98,837,685.40

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Solution

The fourth proportional to 290,313,909.40, 435,470,864.10 and 98,837,685.40 is: 148,256,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313,909.40 : 435,470,864.10 = 98,837,685.40 : x
  2. Step 2: Convert to fraction form
    290,313,909.40/435,470,864.10 = 98,837,685.40/x
  3. Step 3: Cross multiply
    290,313,909.40x = 435,470,864.10 × 98,837,685.40
  4. Step 4: Simplify right side
    290,313,909.40x = 43,040,932,266,781,960
  5. Step 5: Solve for x
    x = 43,040,932,266,781,960/290,313,909.40
  6. Step 6: Final answer
    x = 148,256,528.10

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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.