Home / 103,308,368.76-142,572,020.40-56,898,612

Finding the Fourth Proportional to 103,308,368.76, 142,572,020.40 and 56,898,612

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Solution

The fourth proportional to 103,308,368.76, 142,572,020.40 and 56,898,612 is: 78,523,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,308,368.76 : 142,572,020.40 = 56,898,612 : x
  2. Step 2: Convert to fraction form
    103,308,368.76/142,572,020.40 = 56,898,612/x
  3. Step 3: Cross multiply
    103,308,368.76x = 142,572,020.40 × 56,898,612
  4. Step 4: Simplify right side
    103,308,368.76x = 8,112,150,070,795,685
  5. Step 5: Solve for x
    x = 8,112,150,070,795,685/103,308,368.76
  6. Step 6: Final answer
    x = 78,523,648.84

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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.