Home / 405,009,019.89-607,509,101.13-98,301,132.77

Finding the Fourth Proportional to 405,009,019.89, 607,509,101.13 and 98,301,132.77

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Solution

The fourth proportional to 405,009,019.89, 607,509,101.13 and 98,301,132.77 is: 147,450,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,009,019.89 : 607,509,101.13 = 98,301,132.77 : x
  2. Step 2: Convert to fraction form
    405,009,019.89/607,509,101.13 = 98,301,132.77/x
  3. Step 3: Cross multiply
    405,009,019.89x = 607,509,101.13 × 98,301,132.77
  4. Step 4: Simplify right side
    405,009,019.89x = 59,718,832,809,163,488
  5. Step 5: Solve for x
    x = 59,718,832,809,163,488/405,009,019.89
  6. Step 6: Final answer
    x = 147,450,624.25

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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.