Home / 1,005,640,851.15-1,508,525,038.71-315,575,341.47

Finding the Fourth Proportional to 1,005,640,851.15, 1,508,525,038.71 and 315,575,341.47

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Solution

The fourth proportional to 1,005,640,851.15, 1,508,525,038.71 and 315,575,341.47 is: 473,383,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,640,851.15 : 1,508,525,038.71 = 315,575,341.47 : x
  2. Step 2: Convert to fraction form
    1,005,640,851.15/1,508,525,038.71 = 315,575,341.47/x
  3. Step 3: Cross multiply
    1,005,640,851.15x = 1,508,525,038.71 × 315,575,341.47
  4. Step 4: Simplify right side
    1,005,640,851.15x = 476,053,304,206,953,280
  5. Step 5: Solve for x
    x = 476,053,304,206,953,280/1,005,640,851.15
  6. Step 6: Final answer
    x = 473,383,021.05

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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.