Home / 292,039,118.40-438,030,208.80-76,628,366.40

Finding the Fourth Proportional to 292,039,118.40, 438,030,208.80 and 76,628,366.40

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Solution

The fourth proportional to 292,039,118.40, 438,030,208.80 and 76,628,366.40 is: 114,935,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,039,118.40 : 438,030,208.80 = 76,628,366.40 : x
  2. Step 2: Convert to fraction form
    292,039,118.40/438,030,208.80 = 76,628,366.40/x
  3. Step 3: Cross multiply
    292,039,118.40x = 438,030,208.80 × 76,628,366.40
  4. Step 4: Simplify right side
    292,039,118.40x = 33,565,539,334,194,908
  5. Step 5: Solve for x
    x = 33,565,539,334,194,908/292,039,118.40
  6. Step 6: Final answer
    x = 114,935,079.65

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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.