Home / 716,655,813,695.43-989,220,709,197.63-570,436,488,254.40

Finding the Fourth Proportional to 716,655,813,695.43, 989,220,709,197.63 and 570,436,488,254.40

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Solution

The fourth proportional to 716,655,813,695.43, 989,220,709,197.63 and 570,436,488,254.40 is: 787,389,953,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,655,813,695.43 : 989,220,709,197.63 = 570,436,488,254.40 : x
  2. Step 2: Convert to fraction form
    716,655,813,695.43/989,220,709,197.63 = 570,436,488,254.40/x
  3. Step 3: Cross multiply
    716,655,813,695.43x = 989,220,709,197.63 × 570,436,488,254.40
  4. Step 4: Simplify right side
    716,655,813,695.43x = 564,287,587,463,223,148,806,144
  5. Step 5: Solve for x
    x = 564,287,587,463,223,148,806,144/716,655,813,695.43
  6. Step 6: Final answer
    x = 787,389,953,000.56

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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.