Home / 115,495,485.40-173,243,228.10-72,497,315.80

Finding the Fourth Proportional to 115,495,485.40, 173,243,228.10 and 72,497,315.80

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Solution

The fourth proportional to 115,495,485.40, 173,243,228.10 and 72,497,315.80 is: 108,745,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,495,485.40 : 173,243,228.10 = 72,497,315.80 : x
  2. Step 2: Convert to fraction form
    115,495,485.40/173,243,228.10 = 72,497,315.80/x
  3. Step 3: Cross multiply
    115,495,485.40x = 173,243,228.10 × 72,497,315.80
  4. Step 4: Simplify right side
    115,495,485.40x = 12,559,669,017,777,134
  5. Step 5: Solve for x
    x = 12,559,669,017,777,134/115,495,485.40
  6. Step 6: Final answer
    x = 108,745,973.70

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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.