Home / 145,087,116.60-217,347,239.70-87,408,053.40

Finding the Fourth Proportional to 145,087,116.60, 217,347,239.70 and 87,408,053.40

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Solution

The fourth proportional to 145,087,116.60, 217,347,239.70 and 87,408,053.40 is: 130,941,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,087,116.60 : 217,347,239.70 = 87,408,053.40 : x
  2. Step 2: Convert to fraction form
    145,087,116.60/217,347,239.70 = 87,408,053.40/x
  3. Step 3: Cross multiply
    145,087,116.60x = 217,347,239.70 × 87,408,053.40
  4. Step 4: Simplify right side
    145,087,116.60x = 18,997,899,134,040,200
  5. Step 5: Solve for x
    x = 18,997,899,134,040,200/145,087,116.60
  6. Step 6: Final answer
    x = 130,941,323.94

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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.