Home / 442,866,302.40-664,299,453.60-212,779,905.60

Finding the Fourth Proportional to 442,866,302.40, 664,299,453.60 and 212,779,905.60

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Solution

The fourth proportional to 442,866,302.40, 664,299,453.60 and 212,779,905.60 is: 319,169,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,866,302.40 : 664,299,453.60 = 212,779,905.60 : x
  2. Step 2: Convert to fraction form
    442,866,302.40/664,299,453.60 = 212,779,905.60/x
  3. Step 3: Cross multiply
    442,866,302.40x = 664,299,453.60 × 212,779,905.60
  4. Step 4: Simplify right side
    442,866,302.40x = 141,349,575,027,139,584
  5. Step 5: Solve for x
    x = 141,349,575,027,139,584/442,866,302.40
  6. Step 6: Final answer
    x = 319,169,858.40

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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.