Home / 153,304,784.40-211,561,461.78-87,225,281.06

Finding the Fourth Proportional to 153,304,784.40, 211,561,461.78 and 87,225,281.06

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Solution

The fourth proportional to 153,304,784.40, 211,561,461.78 and 87,225,281.06 is: 120,371,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,304,784.40 : 211,561,461.78 = 87,225,281.06 : x
  2. Step 2: Convert to fraction form
    153,304,784.40/211,561,461.78 = 87,225,281.06/x
  3. Step 3: Cross multiply
    153,304,784.40x = 211,561,461.78 × 87,225,281.06
  4. Step 4: Simplify right side
    153,304,784.40x = 18,453,507,965,224,948
  5. Step 5: Solve for x
    x = 18,453,507,965,224,948/153,304,784.40
  6. Step 6: Final answer
    x = 120,371,376.78

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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.