Home / 651,381,434.40-977,072,151.60-345,271,418.40

Finding the Fourth Proportional to 651,381,434.40, 977,072,151.60 and 345,271,418.40

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Solution

The fourth proportional to 651,381,434.40, 977,072,151.60 and 345,271,418.40 is: 517,907,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,381,434.40 : 977,072,151.60 = 345,271,418.40 : x
  2. Step 2: Convert to fraction form
    651,381,434.40/977,072,151.60 = 345,271,418.40/x
  3. Step 3: Cross multiply
    651,381,434.40x = 977,072,151.60 × 345,271,418.40
  4. Step 4: Simplify right side
    651,381,434.40x = 337,355,087,662,071,808
  5. Step 5: Solve for x
    x = 337,355,087,662,071,808/651,381,434.40
  6. Step 6: Final answer
    x = 517,907,127.60

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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.