Home / 139,968,159.40-209,952,239.10-89,075,794.60

Finding the Fourth Proportional to 139,968,159.40, 209,952,239.10 and 89,075,794.60

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Solution

The fourth proportional to 139,968,159.40, 209,952,239.10 and 89,075,794.60 is: 133,613,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,159.40 : 209,952,239.10 = 89,075,794.60 : x
  2. Step 2: Convert to fraction form
    139,968,159.40/209,952,239.10 = 89,075,794.60/x
  3. Step 3: Cross multiply
    139,968,159.40x = 209,952,239.10 × 89,075,794.60
  4. Step 4: Simplify right side
    139,968,159.40x = 18,701,662,525,881,688
  5. Step 5: Solve for x
    x = 18,701,662,525,881,688/139,968,159.40
  6. Step 6: Final answer
    x = 133,613,691.90

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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.