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Finding the Fourth Proportional to 366,012,401.60, 549,018,602.40 and 123,671,806.40

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Solution

The fourth proportional to 366,012,401.60, 549,018,602.40 and 123,671,806.40 is: 185,507,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,012,401.60 : 549,018,602.40 = 123,671,806.40 : x
  2. Step 2: Convert to fraction form
    366,012,401.60/549,018,602.40 = 123,671,806.40/x
  3. Step 3: Cross multiply
    366,012,401.60x = 549,018,602.40 × 123,671,806.40
  4. Step 4: Simplify right side
    366,012,401.60x = 67,898,122,306,011,376
  5. Step 5: Solve for x
    x = 67,898,122,306,011,376/366,012,401.60
  6. Step 6: Final answer
    x = 185,507,709.60

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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.