Home / 1,243,008,007.95-1,864,512,011.93-783,465,070.35

Finding the Fourth Proportional to 1,243,008,007.95, 1,864,512,011.93 and 783,465,070.35

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Solution

The fourth proportional to 1,243,008,007.95, 1,864,512,011.93 and 783,465,070.35 is: 1,175,197,605.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,008,007.95 : 1,864,512,011.93 = 783,465,070.35 : x
  2. Step 2: Convert to fraction form
    1,243,008,007.95/1,864,512,011.93 = 783,465,070.35/x
  3. Step 3: Cross multiply
    1,243,008,007.95x = 1,864,512,011.93 × 783,465,070.35
  4. Step 4: Simplify right side
    1,243,008,007.95x = 1,460,780,034,591,240,192
  5. Step 5: Solve for x
    x = 1,460,780,034,591,240,192/1,243,008,007.95
  6. Step 6: Final answer
    x = 1,175,197,605.53

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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.