Home / 1,218,077,892.29-1,680,903,991.02-689,430,527.16

Finding the Fourth Proportional to 1,218,077,892.29, 1,680,903,991.02 and 689,430,527.16

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Solution

The fourth proportional to 1,218,077,892.29, 1,680,903,991.02 and 689,430,527.16 is: 951,389,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,077,892.29 : 1,680,903,991.02 = 689,430,527.16 : x
  2. Step 2: Convert to fraction form
    1,218,077,892.29/1,680,903,991.02 = 689,430,527.16/x
  3. Step 3: Cross multiply
    1,218,077,892.29x = 1,680,903,991.02 × 689,430,527.16
  4. Step 4: Simplify right side
    1,218,077,892.29x = 1,158,866,524,630,513,920
  5. Step 5: Solve for x
    x = 1,158,866,524,630,513,920/1,218,077,892.29
  6. Step 6: Final answer
    x = 951,389,506.34

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Double scale
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1.5x scale

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.