Home / 85,982,430.40-128,973,645.60-57,284,616.40

Finding the Fourth Proportional to 85,982,430.40, 128,973,645.60 and 57,284,616.40

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Solution

The fourth proportional to 85,982,430.40, 128,973,645.60 and 57,284,616.40 is: 85,926,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982,430.40 : 128,973,645.60 = 57,284,616.40 : x
  2. Step 2: Convert to fraction form
    85,982,430.40/128,973,645.60 = 57,284,616.40/x
  3. Step 3: Cross multiply
    85,982,430.40x = 128,973,645.60 × 57,284,616.40
  4. Step 4: Simplify right side
    85,982,430.40x = 7,388,205,813,905,547
  5. Step 5: Solve for x
    x = 7,388,205,813,905,547/85,982,430.40
  6. Step 6: Final answer
    x = 85,926,924.60

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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.