Home / 156,352,488.50-215,766,688.32-86,737,871.58

Finding the Fourth Proportional to 156,352,488.50, 215,766,688.32 and 86,737,871.58

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Solution

The fourth proportional to 156,352,488.50, 215,766,688.32 and 86,737,871.58 is: 119,698,403.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,352,488.50 : 215,766,688.32 = 86,737,871.58 : x
  2. Step 2: Convert to fraction form
    156,352,488.50/215,766,688.32 = 86,737,871.58/x
  3. Step 3: Cross multiply
    156,352,488.50x = 215,766,688.32 × 86,737,871.58
  4. Step 4: Simplify right side
    156,352,488.50x = 18,715,143,302,742,044
  5. Step 5: Solve for x
    x = 18,715,143,302,742,044/156,352,488.50
  6. Step 6: Final answer
    x = 119,698,403.80

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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.