Home / 745,564,200.49-1,118,507,734.16-285,502,386.21

Finding the Fourth Proportional to 745,564,200.49, 1,118,507,734.16 and 285,502,386.21

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Solution

The fourth proportional to 745,564,200.49, 1,118,507,734.16 and 285,502,386.21 is: 428,315,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,564,200.49 : 1,118,507,734.16 = 285,502,386.21 : x
  2. Step 2: Convert to fraction form
    745,564,200.49/1,118,507,734.16 = 285,502,386.21/x
  3. Step 3: Cross multiply
    745,564,200.49x = 1,118,507,734.16 × 285,502,386.21
  4. Step 4: Simplify right side
    745,564,200.49x = 319,336,627,097,020,352
  5. Step 5: Solve for x
    x = 319,336,627,097,020,352/745,564,200.49
  6. Step 6: Final answer
    x = 428,315,397.77

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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.