Home / 99,075,167.40-148,636,370.70-47,915,113.80

Finding the Fourth Proportional to 99,075,167.40, 148,636,370.70 and 47,915,113.80

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Solution

The fourth proportional to 99,075,167.40, 148,636,370.70 and 47,915,113.80 is: 71,884,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,075,167.40 : 148,636,370.70 = 47,915,113.80 : x
  2. Step 2: Convert to fraction form
    99,075,167.40/148,636,370.70 = 47,915,113.80/x
  3. Step 3: Cross multiply
    99,075,167.40x = 148,636,370.70 × 47,915,113.80
  4. Step 4: Simplify right side
    99,075,167.40x = 7,121,928,616,909,485
  5. Step 5: Solve for x
    x = 7,121,928,616,909,485/99,075,167.40
  6. Step 6: Final answer
    x = 71,884,093.70

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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.