Home / 389,668,781.16-537,312,010.88-248,316,085.49

Finding the Fourth Proportional to 389,668,781.16, 537,312,010.88 and 248,316,085.49

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Solution

The fourth proportional to 389,668,781.16, 537,312,010.88 and 248,316,085.49 is: 342,401,602.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,668,781.16 : 537,312,010.88 = 248,316,085.49 : x
  2. Step 2: Convert to fraction form
    389,668,781.16/537,312,010.88 = 248,316,085.49/x
  3. Step 3: Cross multiply
    389,668,781.16x = 537,312,010.88 × 248,316,085.49
  4. Step 4: Simplify right side
    389,668,781.16x = 133,423,215,226,416,144
  5. Step 5: Solve for x
    x = 133,423,215,226,416,144/389,668,781.16
  6. Step 6: Final answer
    x = 342,401,602.79

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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.