Home / 126,036,005.60-189,054,008.40-74,891,698.40

Finding the Fourth Proportional to 126,036,005.60, 189,054,008.40 and 74,891,698.40

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Solution

The fourth proportional to 126,036,005.60, 189,054,008.40 and 74,891,698.40 is: 112,337,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,036,005.60 : 189,054,008.40 = 74,891,698.40 : x
  2. Step 2: Convert to fraction form
    126,036,005.60/189,054,008.40 = 74,891,698.40/x
  3. Step 3: Cross multiply
    126,036,005.60x = 189,054,008.40 × 74,891,698.40
  4. Step 4: Simplify right side
    126,036,005.60x = 14,158,575,778,403,868
  5. Step 5: Solve for x
    x = 14,158,575,778,403,868/126,036,005.60
  6. Step 6: Final answer
    x = 112,337,547.60

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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.