Home / 145,539,153.40-218,308,730.10-139,799,590.60

Finding the Fourth Proportional to 145,539,153.40, 218,308,730.10 and 139,799,590.60

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Solution

The fourth proportional to 145,539,153.40, 218,308,730.10 and 139,799,590.60 is: 209,699,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539,153.40 : 218,308,730.10 = 139,799,590.60 : x
  2. Step 2: Convert to fraction form
    145,539,153.40/218,308,730.10 = 139,799,590.60/x
  3. Step 3: Cross multiply
    145,539,153.40x = 218,308,730.10 × 139,799,590.60
  4. Step 4: Simplify right side
    145,539,153.40x = 30,519,471,092,385,896
  5. Step 5: Solve for x
    x = 30,519,471,092,385,896/145,539,153.40
  6. Step 6: Final answer
    x = 209,699,385.90

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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.