Home / 118,703,445.68-163,819,842.69-74,688,173.45

Finding the Fourth Proportional to 118,703,445.68, 163,819,842.69 and 74,688,173.45

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Solution

The fourth proportional to 118,703,445.68, 163,819,842.69 and 74,688,173.45 is: 103,075,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703,445.68 : 163,819,842.69 = 74,688,173.45 : x
  2. Step 2: Convert to fraction form
    118,703,445.68/163,819,842.69 = 74,688,173.45/x
  3. Step 3: Cross multiply
    118,703,445.68x = 163,819,842.69 × 74,688,173.45
  4. Step 4: Simplify right side
    118,703,445.68x = 12,235,404,824,563,334
  5. Step 5: Solve for x
    x = 12,235,404,824,563,334/118,703,445.68
  6. Step 6: Final answer
    x = 103,075,397.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.