Home / 30,902,905.40-46,370,946.90-12,953,823.80

Finding the Fourth Proportional to 30,902,905.40, 46,370,946.90 and 12,953,823.80

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Solution

The fourth proportional to 30,902,905.40, 46,370,946.90 and 12,953,823.80 is: 19,437,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902,905.40 : 46,370,946.90 = 12,953,823.80 : x
  2. Step 2: Convert to fraction form
    30,902,905.40/46,370,946.90 = 12,953,823.80/x
  3. Step 3: Cross multiply
    30,902,905.40x = 46,370,946.90 × 12,953,823.80
  4. Step 4: Simplify right side
    30,902,905.40x = 600,681,075,581,756.25
  5. Step 5: Solve for x
    x = 600,681,075,581,756.25/30,902,905.40
  6. Step 6: Final answer
    x = 19,437,689.36

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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.