Home / 96,985,643.40-145,478,465.10-86,463,111.60

Finding the Fourth Proportional to 96,985,643.40, 145,478,465.10 and 86,463,111.60

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Solution

The fourth proportional to 96,985,643.40, 145,478,465.10 and 86,463,111.60 is: 129,694,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,985,643.40 : 145,478,465.10 = 86,463,111.60 : x
  2. Step 2: Convert to fraction form
    96,985,643.40/145,478,465.10 = 86,463,111.60/x
  3. Step 3: Cross multiply
    96,985,643.40x = 145,478,465.10 × 86,463,111.60
  4. Step 4: Simplify right side
    96,985,643.40x = 12,578,520,763,338,004
  5. Step 5: Solve for x
    x = 12,578,520,763,338,004/96,985,643.40
  6. Step 6: Final answer
    x = 129,694,667.40

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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.