Home / 256,406,312.25-353,841,023.58-138,931,549.83

Finding the Fourth Proportional to 256,406,312.25, 353,841,023.58 and 138,931,549.83

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Solution

The fourth proportional to 256,406,312.25, 353,841,023.58 and 138,931,549.83 is: 191,725,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,406,312.25 : 353,841,023.58 = 138,931,549.83 : x
  2. Step 2: Convert to fraction form
    256,406,312.25/353,841,023.58 = 138,931,549.83/x
  3. Step 3: Cross multiply
    256,406,312.25x = 353,841,023.58 × 138,931,549.83
  4. Step 4: Simplify right side
    256,406,312.25x = 49,159,681,799,402,976
  5. Step 5: Solve for x
    x = 49,159,681,799,402,976/256,406,312.25
  6. Step 6: Final answer
    x = 191,725,708.19

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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.