Home / 86,232,699.40-129,349,049.10-77,729,643.40

Finding the Fourth Proportional to 86,232,699.40, 129,349,049.10 and 77,729,643.40

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Solution

The fourth proportional to 86,232,699.40, 129,349,049.10 and 77,729,643.40 is: 116,594,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,232,699.40 : 129,349,049.10 = 77,729,643.40 : x
  2. Step 2: Convert to fraction form
    86,232,699.40/129,349,049.10 = 77,729,643.40/x
  3. Step 3: Cross multiply
    86,232,699.40x = 129,349,049.10 × 77,729,643.40
  4. Step 4: Simplify right side
    86,232,699.40x = 10,054,255,460,672,092
  5. Step 5: Solve for x
    x = 10,054,255,460,672,092/86,232,699.40
  6. Step 6: Final answer
    x = 116,594,465.10

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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.