Home / 85,547,842.40-128,321,763.60-51,535,618.40

Finding the Fourth Proportional to 85,547,842.40, 128,321,763.60 and 51,535,618.40

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Solution

The fourth proportional to 85,547,842.40, 128,321,763.60 and 51,535,618.40 is: 77,303,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,547,842.40 : 128,321,763.60 = 51,535,618.40 : x
  2. Step 2: Convert to fraction form
    85,547,842.40/128,321,763.60 = 51,535,618.40/x
  3. Step 3: Cross multiply
    85,547,842.40x = 128,321,763.60 × 51,535,618.40
  4. Step 4: Simplify right side
    85,547,842.40x = 6,613,141,441,304,610
  5. Step 5: Solve for x
    x = 6,613,141,441,304,610/85,547,842.40
  6. Step 6: Final answer
    x = 77,303,427.60

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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.