Home / 210,514,207.98-315,155,561.94-122,807,547.30

Finding the Fourth Proportional to 210,514,207.98, 315,155,561.94 and 122,807,547.30

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Solution

The fourth proportional to 210,514,207.98, 315,155,561.94 and 122,807,547.30 is: 183,852,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,514,207.98 : 315,155,561.94 = 122,807,547.30 : x
  2. Step 2: Convert to fraction form
    210,514,207.98/315,155,561.94 = 122,807,547.30/x
  3. Step 3: Cross multiply
    210,514,207.98x = 315,155,561.94 × 122,807,547.30
  4. Step 4: Simplify right side
    210,514,207.98x = 38,703,481,579,804,632
  5. Step 5: Solve for x
    x = 38,703,481,579,804,632/210,514,207.98
  6. Step 6: Final answer
    x = 183,852,111.22

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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.