Home / 210,449,526.48-290,426,463.72-115,085,641.68

Finding the Fourth Proportional to 210,449,526.48, 290,426,463.72 and 115,085,641.68

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Solution

The fourth proportional to 210,449,526.48, 290,426,463.72 and 115,085,641.68 is: 158,821,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,449,526.48 : 290,426,463.72 = 115,085,641.68 : x
  2. Step 2: Convert to fraction form
    210,449,526.48/290,426,463.72 = 115,085,641.68/x
  3. Step 3: Cross multiply
    210,449,526.48x = 290,426,463.72 × 115,085,641.68
  4. Step 4: Simplify right side
    210,449,526.48x = 33,423,915,938,069,444
  5. Step 5: Solve for x
    x = 33,423,915,938,069,444/210,449,526.48
  6. Step 6: Final answer
    x = 158,821,530.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.