Home / 141,638,835.50-212,223,374.08-86,138,798.08

Finding the Fourth Proportional to 141,638,835.50, 212,223,374.08 and 86,138,798.08

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Solution

The fourth proportional to 141,638,835.50, 212,223,374.08 and 86,138,798.08 is: 129,065,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,638,835.50 : 212,223,374.08 = 86,138,798.08 : x
  2. Step 2: Convert to fraction form
    141,638,835.50/212,223,374.08 = 86,138,798.08/x
  3. Step 3: Cross multiply
    141,638,835.50x = 212,223,374.08 × 86,138,798.08
  4. Step 4: Simplify right side
    141,638,835.50x = 18,280,666,367,733,428
  5. Step 5: Solve for x
    x = 18,280,666,367,733,428/141,638,835.50
  6. Step 6: Final answer
    x = 129,065,353.46

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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.