Home / 292,039,115.40-438,030,204.30-76,628,363.40

Finding the Fourth Proportional to 292,039,115.40, 438,030,204.30 and 76,628,363.40

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Solution

The fourth proportional to 292,039,115.40, 438,030,204.30 and 76,628,363.40 is: 114,935,075.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,039,115.40 : 438,030,204.30 = 76,628,363.40 : x
  2. Step 2: Convert to fraction form
    292,039,115.40/438,030,204.30 = 76,628,363.40/x
  3. Step 3: Cross multiply
    292,039,115.40x = 438,030,204.30 × 76,628,363.40
  4. Step 4: Simplify right side
    292,039,115.40x = 33,565,537,675,276,648
  5. Step 5: Solve for x
    x = 33,565,537,675,276,648/292,039,115.40
  6. Step 6: Final answer
    x = 114,935,075.15

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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.