Home / 145,978,563,259.28-219,030,770,307.12-78,812,472,559.49

Finding the Fourth Proportional to 145,978,563,259.28, 219,030,770,307.12 and 78,812,472,559.49

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Solution

The fourth proportional to 145,978,563,259.28, 219,030,770,307.12 and 78,812,472,559.49 is: 118,252,681,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,978,563,259.28 : 219,030,770,307.12 = 78,812,472,559.49 : x
  2. Step 2: Convert to fraction form
    145,978,563,259.28/219,030,770,307.12 = 78,812,472,559.49/x
  3. Step 3: Cross multiply
    145,978,563,259.28x = 219,030,770,307.12 × 78,812,472,559.49
  4. Step 4: Simplify right side
    145,978,563,259.28x = 17,262,356,574,513,852,841,984
  5. Step 5: Solve for x
    x = 17,262,356,574,513,852,841,984/145,978,563,259.28
  6. Step 6: Final answer
    x = 118,252,681,688.98

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1.5x scale

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.