Home / 78,038,627.42-107,688,255.41-42,756,384.17

Finding the Fourth Proportional to 78,038,627.42, 107,688,255.41 and 42,756,384.17

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Solution

The fourth proportional to 78,038,627.42, 107,688,255.41 and 42,756,384.17 is: 59,001,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,038,627.42 : 107,688,255.41 = 42,756,384.17 : x
  2. Step 2: Convert to fraction form
    78,038,627.42/107,688,255.41 = 42,756,384.17/x
  3. Step 3: Cross multiply
    78,038,627.42x = 107,688,255.41 × 42,756,384.17
  4. Step 4: Simplify right side
    78,038,627.42x = 4,604,360,418,693,259
  5. Step 5: Solve for x
    x = 4,604,360,418,693,259/78,038,627.42
  6. Step 6: Final answer
    x = 59,001,043.08

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