Home / 1,130,638,818.80-1,694,698,516.20-440,316,642.80

Finding the Fourth Proportional to 1,130,638,818.80, 1,694,698,516.20 and 440,316,642.80

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Solution

The fourth proportional to 1,130,638,818.80, 1,694,698,516.20 and 440,316,642.80 is: 659,984,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,638,818.80 : 1,694,698,516.20 = 440,316,642.80 : x
  2. Step 2: Convert to fraction form
    1,130,638,818.80/1,694,698,516.20 = 440,316,642.80/x
  3. Step 3: Cross multiply
    1,130,638,818.80x = 1,694,698,516.20 × 440,316,642.80
  4. Step 4: Simplify right side
    1,130,638,818.80x = 746,203,961,211,325,440
  5. Step 5: Solve for x
    x = 746,203,961,211,325,440/1,130,638,818.80
  6. Step 6: Final answer
    x = 659,984,381.22

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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.