Home / 145,788,011.60-201,189,364.19-79,708,586.40

Finding the Fourth Proportional to 145,788,011.60, 201,189,364.19 and 79,708,586.40

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Solution

The fourth proportional to 145,788,011.60, 201,189,364.19 and 79,708,586.40 is: 109,998,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,788,011.60 : 201,189,364.19 = 79,708,586.40 : x
  2. Step 2: Convert to fraction form
    145,788,011.60/201,189,364.19 = 79,708,586.40/x
  3. Step 3: Cross multiply
    145,788,011.60x = 201,189,364.19 × 79,708,586.40
  4. Step 4: Simplify right side
    145,788,011.60x = 16,036,519,817,409,120
  5. Step 5: Solve for x
    x = 16,036,519,817,409,120/145,788,011.60
  6. Step 6: Final answer
    x = 109,998,892.51

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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.