Home / 289,030,549.25-398,862,352.28-156,871,547.64

Finding the Fourth Proportional to 289,030,549.25, 398,862,352.28 and 156,871,547.64

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Solution

The fourth proportional to 289,030,549.25, 398,862,352.28 and 156,871,547.64 is: 216,482,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,030,549.25 : 398,862,352.28 = 156,871,547.64 : x
  2. Step 2: Convert to fraction form
    289,030,549.25/398,862,352.28 = 156,871,547.64/x
  3. Step 3: Cross multiply
    289,030,549.25x = 398,862,352.28 × 156,871,547.64
  4. Step 4: Simplify right side
    289,030,549.25x = 62,570,154,496,710,112
  5. Step 5: Solve for x
    x = 62,570,154,496,710,112/289,030,549.25
  6. Step 6: Final answer
    x = 216,482,841.21

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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.