Home / 634,291,380.87-875,328,075.09-355,838,881.29

Finding the Fourth Proportional to 634,291,380.87, 875,328,075.09 and 355,838,881.29

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Solution

The fourth proportional to 634,291,380.87, 875,328,075.09 and 355,838,881.29 is: 491,061,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,291,380.87 : 875,328,075.09 = 355,838,881.29 : x
  2. Step 2: Convert to fraction form
    634,291,380.87/875,328,075.09 = 355,838,881.29/x
  3. Step 3: Cross multiply
    634,291,380.87x = 875,328,075.09 × 355,838,881.29
  4. Step 4: Simplify right side
    634,291,380.87x = 311,475,763,001,754,752
  5. Step 5: Solve for x
    x = 311,475,763,001,754,752/634,291,380.87
  6. Step 6: Final answer
    x = 491,061,005.08

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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.