Home / 139,968,140.15-209,952,210.23-89,075,775.35

Finding the Fourth Proportional to 139,968,140.15, 209,952,210.23 and 89,075,775.35

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Solution

The fourth proportional to 139,968,140.15, 209,952,210.23 and 89,075,775.35 is: 133,613,663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,140.15 : 209,952,210.23 = 89,075,775.35 : x
  2. Step 2: Convert to fraction form
    139,968,140.15/209,952,210.23 = 89,075,775.35/x
  3. Step 3: Cross multiply
    139,968,140.15x = 209,952,210.23 × 89,075,775.35
  4. Step 4: Simplify right side
    139,968,140.15x = 18,701,655,912,683,448
  5. Step 5: Solve for x
    x = 18,701,655,912,683,448/139,968,140.15
  6. Step 6: Final answer
    x = 133,613,663.03

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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.