Home / 99,645,339.60-149,468,009.40-61,182,133.20

Finding the Fourth Proportional to 99,645,339.60, 149,468,009.40 and 61,182,133.20

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Solution

The fourth proportional to 99,645,339.60, 149,468,009.40 and 61,182,133.20 is: 91,773,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,339.60 : 149,468,009.40 = 61,182,133.20 : x
  2. Step 2: Convert to fraction form
    99,645,339.60/149,468,009.40 = 61,182,133.20/x
  3. Step 3: Cross multiply
    99,645,339.60x = 149,468,009.40 × 61,182,133.20
  4. Step 4: Simplify right side
    99,645,339.60x = 9,144,771,660,249,652
  5. Step 5: Solve for x
    x = 9,144,771,660,249,652/99,645,339.60
  6. Step 6: Final answer
    x = 91,773,199.80

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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.