Home / 438,130,838.04-604,620,703.20-239,904,870.54

Finding the Fourth Proportional to 438,130,838.04, 604,620,703.20 and 239,904,870.54

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Solution

The fourth proportional to 438,130,838.04, 604,620,703.20 and 239,904,870.54 is: 331,068,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,130,838.04 : 604,620,703.20 = 239,904,870.54 : x
  2. Step 2: Convert to fraction form
    438,130,838.04/604,620,703.20 = 239,904,870.54/x
  3. Step 3: Cross multiply
    438,130,838.04x = 604,620,703.20 × 239,904,870.54
  4. Step 4: Simplify right side
    438,130,838.04x = 145,051,451,526,999,776
  5. Step 5: Solve for x
    x = 145,051,451,526,999,776/438,130,838.04
  6. Step 6: Final answer
    x = 331,068,801.68

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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.