Home / 1,420,009,159.65-2,130,013,706.67-384,870,020.10

Finding the Fourth Proportional to 1,420,009,159.65, 2,130,013,706.67 and 384,870,020.10

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Solution

The fourth proportional to 1,420,009,159.65, 2,130,013,706.67 and 384,870,020.10 is: 577,305,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,009,159.65 : 2,130,013,706.67 = 384,870,020.10 : x
  2. Step 2: Convert to fraction form
    1,420,009,159.65/2,130,013,706.67 = 384,870,020.10/x
  3. Step 3: Cross multiply
    1,420,009,159.65x = 2,130,013,706.67 × 384,870,020.10
  4. Step 4: Simplify right side
    1,420,009,159.65x = 819,778,418,099,358,464
  5. Step 5: Solve for x
    x = 819,778,418,099,358,464/1,420,009,159.65
  6. Step 6: Final answer
    x = 577,305,021.26

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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.