Home / 131,478,808.90-181,434,117.32-71,938,816.46

Finding the Fourth Proportional to 131,478,808.90, 181,434,117.32 and 71,938,816.46

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Solution

The fourth proportional to 131,478,808.90, 181,434,117.32 and 71,938,816.46 is: 99,271,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,478,808.90 : 181,434,117.32 = 71,938,816.46 : x
  2. Step 2: Convert to fraction form
    131,478,808.90/181,434,117.32 = 71,938,816.46/x
  3. Step 3: Cross multiply
    131,478,808.90x = 181,434,117.32 × 71,938,816.46
  4. Step 4: Simplify right side
    131,478,808.90x = 13,052,155,666,064,078
  5. Step 5: Solve for x
    x = 13,052,155,666,064,078/131,478,808.90
  6. Step 6: Final answer
    x = 99,271,934.20

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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.