Finding the Fourth Proportional to 315,615,355.58, 435,562,641.86 and 176,386,113.25
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Solution
The fourth proportional to 315,615,355.58, 435,562,641.86 and 176,386,113.25 is: 243,420,353.66
Step by Step Solution
- Step 1: Write the proportion equation
315,615,355.58 : 435,562,641.86 = 176,386,113.25 : x - Step 2: Convert to fraction form
315,615,355.58/435,562,641.86 = 176,386,113.25/x - Step 3: Cross multiply
315,615,355.58x = 435,562,641.86 × 176,386,113.25 - Step 4: Simplify right side
315,615,355.58x = 76,827,201,474,587,152 - Step 5: Solve for x
x = 76,827,201,474,587,152/315,615,355.58 - Step 6: Final answer
x = 243,420,353.66
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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.