Home / 66,430,973.80-99,646,460.70-39,109,220.20

Finding the Fourth Proportional to 66,430,973.80, 99,646,460.70 and 39,109,220.20

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Solution

The fourth proportional to 66,430,973.80, 99,646,460.70 and 39,109,220.20 is: 58,663,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,973.80 : 99,646,460.70 = 39,109,220.20 : x
  2. Step 2: Convert to fraction form
    66,430,973.80/99,646,460.70 = 39,109,220.20/x
  3. Step 3: Cross multiply
    66,430,973.80x = 99,646,460.70 × 39,109,220.20
  4. Step 4: Simplify right side
    66,430,973.80x = 3,897,095,373,666,946.50
  5. Step 5: Solve for x
    x = 3,897,095,373,666,946.50/66,430,973.80
  6. Step 6: Final answer
    x = 58,663,830.30

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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.