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Finding the Fourth Proportional to 19,316,506,530.40, 28,974,759,795.60 and 19,316,506,530.40

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Solution

The fourth proportional to 19,316,506,530.40, 28,974,759,795.60 and 19,316,506,530.40 is: 28,974,759,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316,506,530.40 : 28,974,759,795.60 = 19,316,506,530.40 : x
  2. Step 2: Convert to fraction form
    19,316,506,530.40/28,974,759,795.60 = 19,316,506,530.40/x
  3. Step 3: Cross multiply
    19,316,506,530.40x = 28,974,759,795.60 × 19,316,506,530.40
  4. Step 4: Simplify right side
    19,316,506,530.40x = 559,691,136,808,478,769,152
  5. Step 5: Solve for x
    x = 559,691,136,808,478,769,152/19,316,506,530.40
  6. Step 6: Final answer
    x = 28,974,759,795.60

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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.