Finding the Fourth Proportional to 87,730,840.90, 121,076,681.95 and 48,572,617.65
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Solution
The fourth proportional to 87,730,840.90, 121,076,681.95 and 48,572,617.65 is: 67,034,708.86
Step by Step Solution
- Step 1: Write the proportion equation
87,730,840.90 : 121,076,681.95 = 48,572,617.65 : x - Step 2: Convert to fraction form
87,730,840.90/121,076,681.95 = 48,572,617.65/x - Step 3: Cross multiply
87,730,840.90x = 121,076,681.95 × 48,572,617.65 - Step 4: Simplify right side
87,730,840.90x = 5,881,011,378,294,685 - Step 5: Solve for x
x = 5,881,011,378,294,685/87,730,840.90 - Step 6: Final answer
x = 67,034,708.86
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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.