Home / 692,651,376.80-1,038,977,065.20-429,623,511.20

Finding the Fourth Proportional to 692,651,376.80, 1,038,977,065.20 and 429,623,511.20

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Solution

The fourth proportional to 692,651,376.80, 1,038,977,065.20 and 429,623,511.20 is: 644,435,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,651,376.80 : 1,038,977,065.20 = 429,623,511.20 : x
  2. Step 2: Convert to fraction form
    692,651,376.80/1,038,977,065.20 = 429,623,511.20/x
  3. Step 3: Cross multiply
    692,651,376.80x = 1,038,977,065.20 × 429,623,511.20
  4. Step 4: Simplify right side
    692,651,376.80x = 446,368,974,807,495,360
  5. Step 5: Solve for x
    x = 446,368,974,807,495,360/692,651,376.80
  6. Step 6: Final answer
    x = 644,435,266.80

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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.