Home / 72,762,754.34-100,411,985.13-40,167,006.50

Finding the Fourth Proportional to 72,762,754.34, 100,411,985.13 and 40,167,006.50

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Solution

The fourth proportional to 72,762,754.34, 100,411,985.13 and 40,167,006.50 is: 55,430,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,762,754.34 : 100,411,985.13 = 40,167,006.50 : x
  2. Step 2: Convert to fraction form
    72,762,754.34/100,411,985.13 = 40,167,006.50/x
  3. Step 3: Cross multiply
    72,762,754.34x = 100,411,985.13 × 40,167,006.50
  4. Step 4: Simplify right side
    72,762,754.34x = 4,033,248,859,394,613
  5. Step 5: Solve for x
    x = 4,033,248,859,394,613/72,762,754.34
  6. Step 6: Final answer
    x = 55,430,129.00

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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.