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Finding the Fourth Proportional to 312,897,408.90, 469,343,780.55 and 94,547,328.90

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Solution

The fourth proportional to 312,897,408.90, 469,343,780.55 and 94,547,328.90 is: 141,820,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,897,408.90 : 469,343,780.55 = 94,547,328.90 : x
  2. Step 2: Convert to fraction form
    312,897,408.90/469,343,780.55 = 94,547,328.90/x
  3. Step 3: Cross multiply
    312,897,408.90x = 469,343,780.55 × 94,547,328.90
  4. Step 4: Simplify right side
    312,897,408.90x = 44,375,200,786,830,280
  5. Step 5: Solve for x
    x = 44,375,200,786,830,280/312,897,408.90
  6. Step 6: Final answer
    x = 141,820,288.45

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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.