Home / 145,641,036.60-218,461,554.90-91,221,478.20

Finding the Fourth Proportional to 145,641,036.60, 218,461,554.90 and 91,221,478.20

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Solution

The fourth proportional to 145,641,036.60, 218,461,554.90 and 91,221,478.20 is: 136,832,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,641,036.60 : 218,461,554.90 = 91,221,478.20 : x
  2. Step 2: Convert to fraction form
    145,641,036.60/218,461,554.90 = 91,221,478.20/x
  3. Step 3: Cross multiply
    145,641,036.60x = 218,461,554.90 × 91,221,478.20
  4. Step 4: Simplify right side
    145,641,036.60x = 19,928,385,967,848,456
  5. Step 5: Solve for x
    x = 19,928,385,967,848,456/145,641,036.60
  6. Step 6: Final answer
    x = 136,832,217.30

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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.