Home / 869,196,007.10-1,303,794,010.65-287,020,106.30

Finding the Fourth Proportional to 869,196,007.10, 1,303,794,010.65 and 287,020,106.30

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Solution

The fourth proportional to 869,196,007.10, 1,303,794,010.65 and 287,020,106.30 is: 430,530,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,196,007.10 : 1,303,794,010.65 = 287,020,106.30 : x
  2. Step 2: Convert to fraction form
    869,196,007.10/1,303,794,010.65 = 287,020,106.30/x
  3. Step 3: Cross multiply
    869,196,007.10x = 1,303,794,010.65 × 287,020,106.30
  4. Step 4: Simplify right side
    869,196,007.10x = 374,215,095,530,066,368
  5. Step 5: Solve for x
    x = 374,215,095,530,066,368/869,196,007.10
  6. Step 6: Final answer
    x = 430,530,159.45

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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.