Home / 711,982,016.39-1,068,279,931.06-384,392,486.99

Finding the Fourth Proportional to 711,982,016.39, 1,068,279,931.06 and 384,392,486.99

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Solution

The fourth proportional to 711,982,016.39, 1,068,279,931.06 and 384,392,486.99 is: 576,754,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,982,016.39 : 1,068,279,931.06 = 384,392,486.99 : x
  2. Step 2: Convert to fraction form
    711,982,016.39/1,068,279,931.06 = 384,392,486.99/x
  3. Step 3: Cross multiply
    711,982,016.39x = 1,068,279,931.06 × 384,392,486.99
  4. Step 4: Simplify right side
    711,982,016.39x = 410,638,779,501,659,136
  5. Step 5: Solve for x
    x = 410,638,779,501,659,136/711,982,016.39
  6. Step 6: Final answer
    x = 576,754,426.44

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1.5x scale

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.